1
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Luo P, Li J, Deng YH, Yu P, Wang Y, Peng F, Shao Z. Switchable Chemo-, Regio- and Pseudo-Stereodivergence in Palladium-Catalyzed Cycloaddition of Allenes. Angew Chem Int Ed Engl 2024:e202412179. [PMID: 38990010 DOI: 10.1002/anie.202412179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 07/09/2024] [Accepted: 07/11/2024] [Indexed: 07/12/2024]
Abstract
Here, we report a strategy enabling triple switchable chemo-, regio-, and stereodivergence in newly developed palladium-catalyzed cycloadditions of allenes. An asymmetric pseudo-stereodivergent cycloaddition of allenes bearing a primary leaving group at the α-position, where a dynamic kinetic asymmetric hydroalkoxylation of racemic unactivated allenes was the enantio-determining step, is realized, providing four stereoisomers [(Z,R), (Z,S), (E,S), and (E,R)] containing a di-substituted alkene scaffold and a stereogenic center. By tuning reaction conditions, a mechanistically distinctive cycloaddition is uncovered selectively with the same set of substrates. By switching the position of the leaving group of allenes, a cycloaddition involving an intermolecular O-attack is disclosed. Diverse mechanisms of the cycloaddition reactions of allenes enable rapid access to structurally and stereochemically diverse 3,4-dihydro-2H-1,4-benzoxazines in high efficiency and selectivity.
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Affiliation(s)
- Pengfei Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, China
| | - Jinxia Li
- Department of Chemistry and Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Yu-Hua Deng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, China
| | - Peiyuan Yu
- Department of Chemistry and Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Yingcheng Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, China
| | - Fangzhi Peng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, China
| | - Zhihui Shao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, China
- Southwest United Graduate School, Kunming, 650092, China
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2
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Guo L, Zhao W, Gao Y, Wu M, Chen S. Regio- and Stereoselective Iodoamination of Ferrocene-Containing Allenylphosphonates: Synthesis of Multifunctional Tetrasubstituted Allylic Amines and Allylic Azides. J Org Chem 2024; 89:1956-1966. [PMID: 38268404 DOI: 10.1021/acs.joc.3c02686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
A general and practical methodology for the regio- and stereoselective synthesis of multifunctional tetrasubstituted allylic amines and azides based on iodoamination of ferrocene-containing allenylphosphonates with anilines and sodium azide is described. A tetrasubstituted olefin moiety, as well as an iodine atom, a phosphonate, and a ferrocene group, are installed to the allylic amine motif simultaneously in moderate to good yields.
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Affiliation(s)
- Le Guo
- Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
- College of Chemical Engineering, Ordos Institute of Technology, Ordos 017000, People's Republic of China
| | - Wanrong Zhao
- Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Yanpeng Gao
- College of Chemical Engineering, Ordos Institute of Technology, Ordos 017000, People's Republic of China
| | - Meimei Wu
- College of Chemical Engineering, Ordos Institute of Technology, Ordos 017000, People's Republic of China
| | - Shufeng Chen
- Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
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3
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Jang J, Kim H, Shin S. Revised Mechanism of Gold-Catalyzed Thioallylation of Propiolates. J Org Chem 2023; 88:15437-15443. [PMID: 37851405 DOI: 10.1021/acs.joc.3c02007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Gold-catalyzed enantioselective thioallylation of propiolates proved effective in delivering highly enantio-enriched α-allyl-β-thioacrylates. In this work, we report a revised mechanism for this process based on the new mechanistic experiments and kinetic data in the presence of a competitive inhibitor. The employment of thioethers as nucleophiles inevitably involves their competitive binding to the only catalytic site of the Au(I) catalyst, which may inhibit the activity. We developed a modified Hammett plot in the presence of a dummy thioether inhibitor, which revealed a true kinetic profile, excluding the effect of inhibition. A revised mechanism suggested that the conjugate addition of thioethers to the Au(I)-activated alkynes is the turnover-limiting step, and the subsequent [3,3]-rearrangement occurs quickly, suggesting the efficacy of the sulfonium-based approach in accelerating Claisen rearrangement. In addition, the enantioselectivity was suggested to be determined during the sigmatropic rearrangement by discriminating the prochiral olefin faces of the allyl group in the σ-bound Au(I) complex.
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Affiliation(s)
- Jiwon Jang
- Department of Chemistry, Research Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
| | - Hanbyul Kim
- Department of Chemistry, Research Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
| | - Seunghoon Shin
- Department of Chemistry, Research Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
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4
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Isbel SR, Bugarin A. Synthesis of a New α-Azidomethyl Styrene from Safrole via a Dearomative Rearrangement. MOLBANK 2023; 2023:M1713. [PMID: 37920849 PMCID: PMC10621569 DOI: 10.3390/m1713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023] Open
Abstract
There is a growing interest in developing more efficient synthetic alternatives for the synthesis of nitrogen-containing allylic compounds. This article presents a straightforward two-step protocol to produce 5-(3-azidoprop-1-en-2-yl)benzo[d][1,3]dioxole 4 from the natural product safrole. The method yielded the expected α-azidomethyl styrene 4, in good yield, via a dearomative rearrangement.
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Affiliation(s)
- Stephen R. Isbel
- Department of Chemistry and Physics, Florida Gulf Coast University, 10501 FGCU Boulevard South, Fort Myers, FL 33965, USA
| | - Alejandro Bugarin
- Department of Chemistry and Physics, Florida Gulf Coast University, 10501 FGCU Boulevard South, Fort Myers, FL 33965, USA
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5
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Pandey RP, Maheshwari M, Hussain N. Synthesis of chiral azides from C-2 substituted glycals and their transformation to C3-glycoconjugates and α-triazolo-naphthalene polyol. Chem Commun (Camb) 2023; 59:9900-9903. [PMID: 37498546 DOI: 10.1039/d3cc02423g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
A Lewis-acid-mediated highly regio- and stereoselective chiral azidation of C2-substituted glycals is reported. This strategy provides excellent, scalable, and mild reaction conditions for the stereoselective introduction of the azido group at the C3-position of various C2-substituted glycals. The reactivity of the various glycals reveals that the electron-withdrawing behavior of the C2-group is crucial for C3-selectivity. The newly installed azido group was used as a handle for the synthesis of various C3-glycoconjugates and α-chiral azido naphthalene polyols.
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Affiliation(s)
- Ram Pratap Pandey
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India.
| | - Mittali Maheshwari
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India.
| | - Nazar Hussain
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India.
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6
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Wang L, Zhou Y, Su Z, Zhang F, Cao W, Liu X, Feng X. [3,3]-Sigmatropic Rearrangements of Naphthyl 1-Propargyl Ethers: para-Propargylation and Catalytic Asymmetric Dearomatization. Angew Chem Int Ed Engl 2022; 61:e202211785. [PMID: 36317655 DOI: 10.1002/anie.202211785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Indexed: 11/06/2022]
Abstract
The para-Claisen rearrangement of aryl 1-propargyl ethers involves two-step [3,3]-sigmatropic rearrangements and dearomatization process, which has high activation barriers and is of challenge. Here we discovered thermal para-Claisen rearrangement of naphthyl 1-propargyl ethers, and it enabled the formation of formal para-C-H propargylation products upon rearomatization. Chirality transfer occurred if optically active propargyl ethers were employed, leading to the construction of aryl/propargyl-containing stereogenic centers. Moreover, catalytic asymmetric dearomatization of naphthyl 1-propargyl ethers with different substitution at para-position gave access to benzocyclohexenones bearing all-carbon quaternary stereocenters. The reaction was accelerated by a chiral N,N'-dioxide/Co(OTf)2 complex catalyst to achieve high yields (up to 98 %) and high enantioselectivities (up to 93 % ee). The DFT calculations and experimental results provided important clues to clarify the para-Claisen rearrangement process as well as the chiral induction and remote delivery.
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Affiliation(s)
- Lifeng Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Fengcai Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
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7
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Wang L, Zhou Y, Su Z, Zhang F, Cao W, Liu X, Feng X. [3,3]‐Sigmatropic Rearrangements of Naphthyl 1‐Propargyl Ethers:
para
‐Propargylation and Catalytic Asymmetric Dearomatization. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202211785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Lifeng Wang
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Fengcai Zhang
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
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8
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Mishra S, Urvashi, Patil NT. Chiral Ligands for Au(I), Au(III), and Au(I)/Au(III) Redox Catalysis. Isr J Chem 2022. [DOI: 10.1002/ijch.202200039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sampoorna Mishra
- Sampoorna Mishra Urvashi and Nitin T. Patil Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| | - Urvashi
- Sampoorna Mishra Urvashi and Nitin T. Patil Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| | - Nitin T. Patil
- Sampoorna Mishra Urvashi and Nitin T. Patil Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
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9
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Cao M, Wang H, Ma Y, Tung CH, Liu L. Site- and Enantioselective Manganese-Catalyzed Benzylic C-H Azidation of Indolines. J Am Chem Soc 2022; 144:15383-15390. [PMID: 35951549 DOI: 10.1021/jacs.2c07089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A manganese-catalyzed highly site- and enantioselective benzylic C-H azidation of indolines has been described. The practical method is applicable for azidation of a tertiary benzylic C-H bond with good functional group tolerance, allowing facile access to structurally diverse tertiary azide-containing indolines in high efficiency with excellent site-, chemo-, and enantioselectivity. The generality of the method was further demonstrated by site- and enantioselective azidation of the secondary benzylic C-H bond for a range of secondary azide-containing indolines. The benzylic C-H azidation method allows to straightforwardly and enantioselectively install a variety of nitrogen-based functional groups and diverse bioactive molecules at the C3 position of indoline frameworks through post-azidation manipulations. Gram-scale synthesis was also demonstrated, further highlighting the synthetic potential of the method. Mechanistic studies by combined experiments and computations elucidated the reaction mechanism and origins of stereoselectivity.
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Affiliation(s)
- Min Cao
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Hongliang Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yingang Ma
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Chen-Ho Tung
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Lei Liu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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10
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Abegg T, Cossy J, Meyer C. Cascade Cope/Winstein Rearrangements: Synthesis of Azido-Cycloheptadienes from Dialkenylcyclopropanes Possessing a Vinyl Azide. Org Lett 2022; 24:4954-4959. [PMID: 35787030 DOI: 10.1021/acs.orglett.2c01888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
cis-1,2-Dialkenylcyclopropanes incorporating a vinyl azide, generated by Knoevenagel condensations between the corresponding cyclopropanecarbaldehydes and α-azido ketones, undergo cascade Cope and Winstein [3,3]-sigmatropic rearrangements, under mild conditions. The sequence allows access to diversely substituted 1,4-cycloheptadienes armed with a secondary allylic azide with up to three stereocenters.
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Affiliation(s)
- Thomas Abegg
- Molecular, Macromolecular Chemistry, and Materials, ESPCI Paris - PSL, CNRS, 10 rue Vauquelin 75005 Paris, France
| | - Janine Cossy
- Molecular, Macromolecular Chemistry, and Materials, ESPCI Paris - PSL, CNRS, 10 rue Vauquelin 75005 Paris, France
| | - Christophe Meyer
- Molecular, Macromolecular Chemistry, and Materials, ESPCI Paris - PSL, CNRS, 10 rue Vauquelin 75005 Paris, France
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11
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Wang H, Wang H, Li L, Wang X, Sun R, Zhou M. Ruthenium(II)‐Catalyzed Hydroamination of Allenoates: A Regioselective Synthesis of Allylamines. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hua Wang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 People's Republic of China
| | - He Wang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 People's Republic of China
| | - Lei Li
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 People's Republic of China
| | - Xin Wang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 People's Republic of China
| | - Ran Sun
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 People's Republic of China
| | - Ming‐Dong Zhou
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 People's Republic of China
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12
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Rúbio GMDM, Tan TTY, Prado-Roller A, Chin JM, Reithofer MR. Reactivity of Diamines in Acyclic Diamino Carbene Gold Complexes. Inorg Chem 2022; 61:7448-7458. [PMID: 35506716 PMCID: PMC9115764 DOI: 10.1021/acs.inorgchem.2c00509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Acyclic diamino carbenes
(ADCs) are interesting alternatives to
their more widely studied N-heterocyclic carbene counterparts, particularly
due to their greater synthetic accessibility and properties such as
increased sigma donation and structural flexibility. ADC gold complexes
are typically obtained through the reaction of equimolar amounts of
primary/secondary amines on gold-coordinated isocyanide ligands. As
such, the reaction of diamine nucleophiles to isocyanide gold complexes
was expected to lead to bis-ADC gold compounds with potential applications
in catalysis or as novel precursors for gold nanomaterials. However,
the reaction of primary diamines with two equivalents of isocyanide
gold chlorides resulted in only one of the amine groups reacting with
the isocyanide carbon. The resulting ADC gold complexes bearing free
amines dimerized via coordination of the amine to the partner gold
atom, resulting in cyclic, dimeric gold complexes. In contrast, when
secondary diamines were used, both amines reacted with an isocyanide
carbon, leading to the expected bis-ADC gold complexes. Density functional
theory calculations were performed to elucidate the differences in
the reactivities between primary and secondary diamines. It was found
that the primary amines were associated with higher reaction barriers
than the secondary amines and hence slower reaction rates, with the
formation of the second carbenes in the bis-ADC compounds being inhibitingly
slow. It was also found that diamines have a unique reactivity due
to the second amine serving as an internal proton shuttle. Reactions between primary diamines with
a gold-coordinated
isocyanide complex afforded unexpected cyclic dimeric gold complexes
instead of bis-acyclic diamino carbene gold complexes, which were
obtained when using secondary diamines. DFT calculations revealed
that primary amines react slower in the carbene-forming reaction,
with the barrier of the second carbene formation ultimately resulting
in this interesting selectivity.
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Affiliation(s)
- Guilherme M D M Rúbio
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Vienna A-1090, Austria
| | - Tristan T Y Tan
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), Singapore 138634, Singapore
| | - Alexander Prado-Roller
- Institute of Inorganic Chemistry - Functional Materials, Faculty of Chemistry, University of Vienna, Vienna A-1090, Austria
| | - Jia Min Chin
- Institute of Inorganic Chemistry - Functional Materials, Faculty of Chemistry, University of Vienna, Vienna A-1090, Austria
| | - Michael R Reithofer
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Vienna A-1090, Austria
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13
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Jiang J, Wang X, Liu S, Zhang S, Yang B, Zhao Y, Lu S. Enantioselective Cascade Annulation of α-Amino-ynones and Enals Enabled by Gold and Oxidative NHC Relay Catalysis. Angew Chem Int Ed Engl 2022; 61:e202115464. [PMID: 35029004 DOI: 10.1002/anie.202115464] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Indexed: 01/03/2023]
Abstract
We report herein an unprecedented gold and oxidative NHC relay catalysis that enables highly enantioselective cascade annulation between readily available α-amino-ynones with enals. This method utilizes the in situ-generated pyrrolin-4-ones as a novel and versatile synthon, which engage with α,β-unsaturated acylazolium intermediates generated from enals by oxidative NHC catalysis to produce pyrrole-fused lactones in high yield and excellent enantioselectivity. Synthetic utility of the lactone products is also demonstrated by facile conversion to densely functionalized pyrroles and pyrrolin-4-ones in high yields with excellent stereopurity.
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Affiliation(s)
- Jianfeng Jiang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
| | - Xia Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
| | - Shengping Liu
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
| | - Sichen Zhang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
| | - Binmiao Yang
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
| | - Yu Zhao
- Department of Chemistry, National University of Singapore (NUS), 3 Science Drive 3, Singapore, 117543, Republic of Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
| | - Shenci Lu
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
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14
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Jiang J, Wang X, Liu S, Zhang S, Yang B, Zhao Y, Lu S. Enantioselective Cascade Annulation of α‐Amino‐ynones and Enals Enabled by Gold and Oxidative NHC Relay Catalysis. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jianfeng Jiang
- Frontiers Science Center for Flexible Electronics (FSCFE) Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME) Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Xia Wang
- Frontiers Science Center for Flexible Electronics (FSCFE) Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME) Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Shengping Liu
- Frontiers Science Center for Flexible Electronics (FSCFE) Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME) Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Sichen Zhang
- Frontiers Science Center for Flexible Electronics (FSCFE) Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME) Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Binmiao Yang
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City, Fuzhou 350207 China
| | - Yu Zhao
- Department of Chemistry National University of Singapore (NUS) 3 Science Drive 3 Singapore 117543 Republic of Singapore
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City, Fuzhou 350207 China
| | - Shenci Lu
- Frontiers Science Center for Flexible Electronics (FSCFE) Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME) Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
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15
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Vethacke V, Claus V, Dietl MC, Ehjeij D, Meister A, Huber JF, Paschai Darian LK, Rudolph M, Rominger F, Hashmi ASK. Access to Unsymmetrically Substituted Diaryl Gold N‐Acyclic Carbene (NAC) and N‐Heterocyclic Carbene (NHC) Complexes via the Isonitrile Route. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101000] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Vanessa Vethacke
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Vanessa Claus
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Martin C. Dietl
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Daniel Ehjeij
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Arne Meister
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Jonas F. Huber
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Leon K. Paschai Darian
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry Department, Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia
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16
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Abstract
In this contribution, we provide an overview of the main avenues that have emerged in gold coordination chemistry during the last years. The unique properties of gold have motivated research in gold chemistry, and especially regarding the properties and applications of gold compounds in catalysis, medicine, and materials chemistry. The advances in the synthesis and knowledge of gold coordination compounds have been possible with the design of novel ligands becoming relevant motifs that have allowed the preparation of elusive complexes in this area of research. Strong donor ligands with easily modulable electronic and steric properties, such as stable singlet carbenes or cyclometalated ligands, have been decisive in the stabilization of gold(0) species, gold fluoride complexes, gold hydrides, unprecedented π complexes, or cluster derivatives. These new ligands have been important not only from the fundamental structure and bonding studies but also for the synthesis of sophisticated catalysts to improve activity and selectivity of organic transformations. Moreover, they have enabled the facile oxidative addition from gold(I) to gold(III) and the design of a plethora of complexes with specific properties.
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Affiliation(s)
- Raquel P Herrera
- Laboratorio de Organocatálisis Asimétrica Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - M Concepción Gimeno
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
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17
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Ruch AA, Ellison MC, Nguyen JK, Kong F, Handa S, Nesterov VN, Slaughter LM. Highly Sterically Encumbered Gold Acyclic Diaminocarbene Complexes: Overriding Electronic Control in Regiodivergent Gold Catalysis. Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00776] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Aaron A. Ruch
- Department of Chemistry, University of North Texas, Denton, Texas 76203,United States
| | - Matthew C. Ellison
- Department of Chemistry, University of North Texas, Denton, Texas 76203,United States
| | - John K. Nguyen
- Department of Chemistry, University of North Texas, Denton, Texas 76203,United States
| | - Fanji Kong
- Department of Chemistry, University of North Texas, Denton, Texas 76203,United States
| | - Sachin Handa
- Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma 74078,United States
| | - Vladimir N. Nesterov
- Department of Chemistry, University of North Texas, Denton, Texas 76203,United States
| | - LeGrande M. Slaughter
- Department of Chemistry, University of North Texas, Denton, Texas 76203,United States
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18
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Affiliation(s)
- Paramasivam Sivaguru
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Northeast Normal University, Changchun 130024, China
| | - Yongquan Ning
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Northeast Normal University, Changchun 130024, China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Northeast Normal University, Changchun 130024, China
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19
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Wu L, Zhang Z, Wu D, Wang F, Chen P, Lin Z, Liu G. Anionic Bisoxazoline Ligands Enable Copper‐Catalyzed Asymmetric Radical Azidation of Acrylamides. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lianqian Wu
- State Key Laboratory of Organometallic Chemistry Shanghai Hong Kong Joint Laboratory in Chemical Synthesis Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Zhihan Zhang
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Dunqi Wu
- Chang-Kung Chuang Institute East China Normal University 3663 North Zhongshan Road Shanghai 200062 China
| | - Fei Wang
- State Key Laboratory of Organometallic Chemistry Shanghai Hong Kong Joint Laboratory in Chemical Synthesis Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Pinhong Chen
- State Key Laboratory of Organometallic Chemistry Shanghai Hong Kong Joint Laboratory in Chemical Synthesis Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Zhenyang Lin
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Guosheng Liu
- State Key Laboratory of Organometallic Chemistry Shanghai Hong Kong Joint Laboratory in Chemical Synthesis Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
- Chang-Kung Chuang Institute East China Normal University 3663 North Zhongshan Road Shanghai 200062 China
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20
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Wu L, Zhang Z, Wu D, Wang F, Chen P, Lin Z, Liu G. Anionic Bisoxazoline Ligands Enable Copper‐Catalyzed Asymmetric Radical Azidation of Acrylamides. Angew Chem Int Ed Engl 2021; 60:6997-7001. [DOI: 10.1002/anie.202015083] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/07/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Lianqian Wu
- State Key Laboratory of Organometallic Chemistry Shanghai Hong Kong Joint Laboratory in Chemical Synthesis Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Zhihan Zhang
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Dunqi Wu
- Chang-Kung Chuang Institute East China Normal University 3663 North Zhongshan Road Shanghai 200062 China
| | - Fei Wang
- State Key Laboratory of Organometallic Chemistry Shanghai Hong Kong Joint Laboratory in Chemical Synthesis Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Pinhong Chen
- State Key Laboratory of Organometallic Chemistry Shanghai Hong Kong Joint Laboratory in Chemical Synthesis Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Zhenyang Lin
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Guosheng Liu
- State Key Laboratory of Organometallic Chemistry Shanghai Hong Kong Joint Laboratory in Chemical Synthesis Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
- Chang-Kung Chuang Institute East China Normal University 3663 North Zhongshan Road Shanghai 200062 China
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21
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Abstract
This review summarizes the recent achievements of dinuclear gold-catalyzed redox coupling, asymmetric catalysis and photocatalysis. The dinuclear gold catalysts show a better catalytic performance than the mononuclear gold catalysts in certain cases.
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Affiliation(s)
- Wenliang Wang
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Cheng-Long Ji
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Kai Liu
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Chuan-Gang Zhao
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Weipeng Li
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Jin Xie
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
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22
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Yu Z, Lin S, Lin Z. Understanding the reaction mechanism of gold-catalyzed reactions of 2,1-benzisoxazoles with propiolates and ynamides. Org Chem Front 2021. [DOI: 10.1039/d1qo00217a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The detailed reaction mechanisms of gold-catalyzed reactions of 2,1-benzisoxazoles with propiolates and ynamides have been investigated with the aid of density functional theory calculations.
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Affiliation(s)
- Zhaoyuan Yu
- The Institute of Drug Discovery Technology
- Ningbo University
- Ningbo
- 315211
- PR China
| | - Shujuan Lin
- Department of Chemistry
- The Hong Kong University of Science and Technology
- Kowloon
- China
- State Key Laboratory of Structural Chemistry
| | - Zhenyang Lin
- Department of Chemistry
- The Hong Kong University of Science and Technology
- Kowloon
- China
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23
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Gangwar MK, Butcher RJ. Axially chiral bis-1,2,3-Triazol-4-ylidene–Ag(I)-MIC and, bis-Au(I)-MIC complexes of (R)-BINOL and (-)-Menthol scaffold: Synthesis, structure, and characterizations. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2020.121626] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Blieck R, Taillefer M, Monnier F. Metal-Catalyzed Intermolecular Hydrofunctionalization of Allenes: Easy Access to Allylic Structures via the Selective Formation of C–N, C–C, and C–O Bonds. Chem Rev 2020; 120:13545-13598. [DOI: 10.1021/acs.chemrev.0c00803] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rémi Blieck
- Institut Charles Gerhardt Montpellier UMR 5253, Université Montpellier, CNRS, ENSCM, 8 rue de l’Ecole Normale, Montpellier 34296, Cedex 5, France
| | - Marc Taillefer
- Institut Charles Gerhardt Montpellier UMR 5253, Université Montpellier, CNRS, ENSCM, 8 rue de l’Ecole Normale, Montpellier 34296, Cedex 5, France
| | - Florian Monnier
- Institut Charles Gerhardt Montpellier UMR 5253, Université Montpellier, CNRS, ENSCM, 8 rue de l’Ecole Normale, Montpellier 34296, Cedex 5, France
- Institut Universitaire de France, IUF, 1 rue Descartes, 75231 Paris, cedex 5, France
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25
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Rúbio GMDM, Keppler BK, Chin JM, Reithofer MR. Synthetically Versatile Nitrogen Acyclic Carbene Stabilized Gold Nanoparticles. Chemistry 2020; 26:15859-15862. [PMID: 32996636 PMCID: PMC7894353 DOI: 10.1002/chem.202003679] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/23/2020] [Indexed: 01/07/2023]
Abstract
N-heterocyclic carbenes (NHCs) have received significant attention as gold nanoparticle stabilizers due to their strong binding affinity towards gold. However, their tunability is limited by the difficulty in obtaining nonsymmetric NHCs. In this regard, N-acyclic carbenes (NACs) are attractive alternatives due to their high synthetic versatility, allowing easy tuning of their steric and electronic properties towards specific applications. This work reports the first series of stable and monodisperse NAC-functionalized gold nanoparticles. These particles with sizes ranging 3.8 to 11.6 nm were characterized using NMR, UV/Vis and TEM. The nanoparticles display good stability at elevated temperatures and for extended periods both dried or dispersed in a medium, as well as in the presence of exogenous thiols. Importantly, these NAC-stabilized gold nanoparticles offer a promising and versatile alternative to NHC-stabilized gold nanoparticles.
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Affiliation(s)
- Guilherme M. D. M. Rúbio
- Institute of Inorganic ChemistryFaculty of ChemistryUniversity of ViennaWaehringer Strasse 421090ViennaAustria
| | - Bernhard K. Keppler
- Institute of Inorganic ChemistryFaculty of ChemistryUniversity of ViennaWaehringer Strasse 421090ViennaAustria
| | - Jia Min Chin
- Institute of Physical ChemistryFaculty of ChemistryUniversity of ViennaWaehringer Strasse 421090ViennaAustria
| | - Michael R. Reithofer
- Institute of Inorganic ChemistryFaculty of ChemistryUniversity of ViennaWaehringer Strasse 421090ViennaAustria
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26
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Galan NJ, Brantley JN. General Access to Allene-Containing Polymers Using the Skattebøl Rearrangement. ACS Macro Lett 2020; 9:1662-1666. [PMID: 35617067 DOI: 10.1021/acsmacrolett.0c00745] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Postsynthetic modification is a powerful strategy for tuning soft materials. While methods for side-chain functionalization abound, modifications of backbone structural elements can be difficult to achieve. This challenge arises, in part, from a lack of intrinsically reactive motifs that can be installed in the main chain of a polymer. Incorporating established synthetic handles into polymer architectures is paramount for overcoming this limitation. Allenes are salient examples of moieties that could be leveraged in a wide range of postsynthetic modifications; however, the synthesis of a polyallene has proven elusive. Using the metathesis polymer of norbornene as a model architecture, we have established the Skattebøl rearrangement as a facile route to polyallenes. Polymers with varying allene content (20-95%) were readily prepared in excellent yields (89-94%). These materials possess unique optical properties and can be engaged through further postsynthetic modifications. As such, polyallenes could serve as valuable platforms for developing functional soft materials.
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Affiliation(s)
- Nicholas J. Galan
- Department of Chemistry, University of Tennessee, 1416 Circle Drive, Knoxville, Tennessee 37996, United States
| | - Johnathan N. Brantley
- Department of Chemistry, University of Tennessee, 1416 Circle Drive, Knoxville, Tennessee 37996, United States
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27
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Ge L, Chiou MF, Li Y, Bao H. Radical azidation as a means of constructing C(sp3)-N3 bonds. GREEN SYNTHESIS AND CATALYSIS 2020. [DOI: 10.1016/j.gresc.2020.07.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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28
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Abstract
A wide range of methodologies for the preparation of organic azides has been reported in the literature for many decades, due to their interest as building blocks for different transformations and their applications in biology as well as in materials science. More recently, with the spread of the use of transition metal-catalyzed reactions, new perspectives have also materialized in azidation processes, especially concerning the azidation of C–H bonds and direct difunctionalization of multiple carbon-carbon bonds. In this review, special emphasis will be placed on reactions involving substrates bearing a leaving group, hydroazidation reactions and azidation reactions that proceed with the formation of more than one bond. Further reactions for the preparation of allyl and vinyl azides as well as for azidations involving the opening of a ring complete the classification of the material.
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29
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Beletskaya IP, Naájera C, Yus M. Catalysis and regioselectivity in hydrofunctionalization reactions of unsaturated carbon bonds. Part II. Hydroamination. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4953] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This review continues consideration of the regioselectivity problem in the catalyzed hydrofunctionalization of unsaturated organic compounds and addresses hydroamination of unsaturated hydrocarbons. Particular parts of the review deal with reactions of alkenes, alkynes, allenes and dienes. It is shown that the selectivity of hydroamination depends on the natures of the reactants and the catalyst. Conditions of the reactions are described; in some cases, reaction mechanisms are discussed. Reactions for which divergent regioselectivity is possible are noted.
The bibliography includes 249 references.
Dedicated to the memory of V.V.Markovnikov.
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30
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Xiu H, Li T, Song C, Ma Y. Azidative Aromatization of Quinone Methides Under Transition Metal and Solvent Free Conditions. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000900] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Haiping Xiu
- School of Pharmaceutical Science Shandong University Wenhua Road No. 44 250012 Jinan P. R. China
| | - Tingting Li
- Department of Chemistry Shandong University Shanda South Road No. 27 250100 Jinan P. R. China
| | - Chun Song
- School of Pharmaceutical Science Shandong University Wenhua Road No. 44 250012 Jinan P. R. China
- State Key Laboratory of Microbial Technology Binhai Road No. 72 266237 Qingdao P. R. China
| | - Yudao Ma
- Department of Chemistry Shandong University Shanda South Road No. 27 250100 Jinan P. R. China
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31
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Yamaguchi A, Inuki S, Tokimizu Y, Oishi S, Ohno H. Gold(I)-Catalyzed Cascade Cyclization of Anilines with Diynes: Controllable Formation of Eight-Membered Ring-Fused Indoles and Propellane-Type Indolines. J Org Chem 2020; 85:2543-2559. [PMID: 31913037 DOI: 10.1021/acs.joc.9b03256] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Heterocycle-fused indoles or indolines are distributed widely in a variety of natural products, bioactive agents, and pharmaceuticals. Herein, we describe the development of gold-catalyzed cascade reactions of anilines with diynes to form eight-membered ring-fused indoles and propellane-type indolines, both of which proceed through an intramolecular 5-endo-dig hydroamination followed by an 8-endo-dig cycloisomerization. Controllable formation of eight-membered ring-fused indoles and propellane-type indolines was achieved through selection of the ligands and/or solvents. Protic solvents such as alcohols or IPr ligand favored the formation of eight-membered ring-fused indoles, whereas the use of Buchwald's type ligands and/or nonpolar solvents gave propellane-type indoline predominantly. This reaction provides rapid access to two types of fused nitrogen heterocycles from simple aniline derivatives.
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Affiliation(s)
- Ayuta Yamaguchi
- Graduate School of Pharmaceutical Sciences , Kyoto University , Sakyo-ku, Kyoto 606-8501 , Japan
| | - Shinsuke Inuki
- Graduate School of Pharmaceutical Sciences , Kyoto University , Sakyo-ku, Kyoto 606-8501 , Japan
| | - Yusuke Tokimizu
- Graduate School of Pharmaceutical Sciences , Kyoto University , Sakyo-ku, Kyoto 606-8501 , Japan
| | - Shinya Oishi
- Graduate School of Pharmaceutical Sciences , Kyoto University , Sakyo-ku, Kyoto 606-8501 , Japan
| | - Hiroaki Ohno
- Graduate School of Pharmaceutical Sciences , Kyoto University , Sakyo-ku, Kyoto 606-8501 , Japan
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32
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Arcadi A, Aschi M, Chiarini M, Marinelli F, Marsicano V, Portalone G. Experimental results and computational insight into sequential reactions of β-(2-aminophenyl)-α,β-ynones with aryl isocyanates/benzoyl isothiocyanate. Org Biomol Chem 2020; 18:3177-3189. [DOI: 10.1039/d0ob00087f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The selective formation of quinazoline vs. benzoxazine and benzothiazine derivatives from β-(2-aminophenyl)-α,β-ynones and aryl isocyanates/benzoyl isothiocyanate was explored. DFT calculations provide a plausible rationale.
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Affiliation(s)
- Antonio Arcadi
- Dipartimento di Scienze Fisiche e Chimiche Università degli Studi di L'Aquila
- 67100 Coppito
- Italy
| | - Massimiliano Aschi
- Dipartimento di Scienze Fisiche e Chimiche Università degli Studi di L'Aquila
- 67100 Coppito
- Italy
| | - Marco Chiarini
- Facoltà di Bioscienze e Tecnologie Agro-alimentari e Ambientali
- Università di Teramo
- 64100 Teramo
- Italy
| | - Fabio Marinelli
- Dipartimento di Scienze Fisiche e Chimiche Università degli Studi di L'Aquila
- 67100 Coppito
- Italy
| | - Vincenzo Marsicano
- Dipartimento di Scienze Fisiche e Chimiche Università degli Studi di L'Aquila
- 67100 Coppito
- Italy
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33
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Liu Y, Ding N, Tan X, Li X, Zhao Z. Iron(ii)-chloride-catalyzed regioselective azidation of allenamides with TMSN3. Chem Commun (Camb) 2020; 56:7507-7510. [DOI: 10.1039/c9cc10056c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The first report of iron catalyzed azidation of allenamides via radical process to provide an efficient route for accessing allyl azides.
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Affiliation(s)
- Yongchun Liu
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- People's Republic of China
| | - Na Ding
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- People's Republic of China
| | - Xiaoju Tan
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- People's Republic of China
| | - Xiaoxiao Li
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- People's Republic of China
| | - Zhigang Zhao
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- People's Republic of China
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34
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Ye X, Pan Y, Yang X. Direct enantioselective Mannich reactions of α-azido cyclic ketones: asymmetric construction of chiral azides possessing an α-quaternary stereocenter. Chem Commun (Camb) 2019; 56:98-101. [PMID: 31790111 DOI: 10.1039/c9cc08000g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Direct enantioselective Mannich reactions of α-azido cyclic ketones with aldimines are realized through chiral phosphoric acid catalysis, which generate chiral azides possessing an α-quanternary stereocenter with complete regioselectivities and high diastereoselectivities and enantioselectivities.
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Affiliation(s)
- Xueqian Ye
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
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35
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Quirós MT, Gómez-Bengoa E, Muñoz MP. Unravelling mechanistic insights in the platinum-catalysed dihydroalkoxylation of allenes. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2019-0214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The mechanism of the platinum-catalysed dihydroalkoxylation of allenes to give acetals has been studied experimentally and by computational methods. Our findings further explain divergent reactivity encountered for platinum- and gold-vinyl intermediates after the first nucleophilic attack onto the coordinated allene, as well as provide new details on the catalytic cycle with platinum, uncovering enol ethers as resting states of the catalytic cycle, a SEOx process via Pt(IV)–H as the final protodemetallation step after the second nucleophilic attack when neutral platinum complexes are used, and a fast acid promoted addition of methanol to enol ethers when cationic platinum complexes are employed.
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Affiliation(s)
- María Teresa Quirós
- School of Chemistry , University of East Anglia , Earlham Road , Norwich , NR4 7TJ , UK
| | - Enrique Gómez-Bengoa
- Departamento de Química Orgánica , Universidad del País Vasco , Apt. 1072 , 20080 San Sebastián , Spain
| | - María Paz Muñoz
- School of Chemistry , University of East Anglia , Earlham Road , Norwich , NR4 7TJ , UK
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36
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Adamson NJ, Malcolmson SJ. Catalytic Enantio- and Regioselective Addition of Nucleophiles in the Intermolecular Hydrofunctionalization of 1,3-Dienes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04712] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Nathan J. Adamson
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Steven J. Malcolmson
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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37
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Zhou L, Wu X, Yang X, Mou C, Song R, Yu S, Chai H, Pan L, Jin Z, Chi YR. Gold and Carbene Relay Catalytic Enantioselective Cycloisomerization/Cyclization Reactions of Ynamides and Enals. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910922] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Liejin Zhou
- Division of Chemistry & Biological Chemistry School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Xingxing Wu
- Division of Chemistry & Biological Chemistry School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Xing Yang
- Division of Chemistry & Biological Chemistry School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Chengli Mou
- Guizhou University of Traditional Chinese Medicine Guizhou P. R. China
| | - Runjiang Song
- Division of Chemistry & Biological Chemistry School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Shuyan Yu
- Material and Chemical Engineering College Zhengzhou University of Light Industry Zhengzhou 450001 Henan Province P. R. China
| | - Huifang Chai
- Guizhou University of Traditional Chinese Medicine Guizhou P. R. China
| | - Lutai Pan
- Guizhou University of Traditional Chinese Medicine Guizhou P. R. China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education Guizhou University Huaxi District Guiyang 550025 P. R. China
| | - Yonggui Robin Chi
- Division of Chemistry & Biological Chemistry School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education Guizhou University Huaxi District Guiyang 550025 P. R. China
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38
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Gold and Carbene Relay Catalytic Enantioselective Cycloisomerization/Cyclization Reactions of Ynamides and Enals. Angew Chem Int Ed Engl 2019; 59:1557-1561. [DOI: 10.1002/anie.201910922] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/24/2019] [Indexed: 01/04/2023]
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40
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Abstract
N-Heterocyclic carbenes have found many applications in modern metal catalysis, due to the formation of stable metal complexes, and organocatalysis. Among a myriad of N-heterocyclic carbene metal complexes, gold complexes have gained a lot of attention due to their unique propensity for the activation of carbon-carbon multiple bonds, allowing many useful transformations of alkynes, allenes, and alkenes, inaccessible by other metal complexes. The present review summarizes synthetic efforts towards the preparation of chiral N-heterocyclic gold(I) complexes exhibiting C2 and C1 symmetry, as well as their applications in enantioselective catalysis. Finally, the emerging area of rare gold(III) complexes and their preliminary usage in asymmetric catalysis is also presented.
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41
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Alonso JM, Muñoz MP. Platinum and Gold Catalysis: à la Carte Hydroamination of Terminal Activated Allenes with Azoles. Org Lett 2019; 21:7639-7644. [DOI: 10.1021/acs.orglett.9b02949] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- José Miguel Alonso
- School of Chemistry, University of East Anglia, Norwich NR4 7TJ, United Kingdom
| | - María Paz Muñoz
- School of Chemistry, University of East Anglia, Norwich NR4 7TJ, United Kingdom
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42
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Wang CJ, Sun J, Zhou W, Xue J, Ren BT, Zhang GY, Mei YL, Deng QH. Enantioselective Copper-Catalyzed Electrophilic Dearomative Azidation of β-Naphthols. Org Lett 2019; 21:7315-7319. [DOI: 10.1021/acs.orglett.9b02604] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chong-Ji Wang
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Jian Sun
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Wei Zhou
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Jing Xue
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Bing-Tao Ren
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Guang-Yi Zhang
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Yan-Le Mei
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Qing-Hai Deng
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
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43
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Praveen C. Carbophilic activation of π-systems via gold coordination: Towards regioselective access of intermolecular addition products. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.04.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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44
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Thirupathi N, Wei F, Tung CH, Xu Z. Divergent synthesis of chiral cyclic azides via asymmetric cycloaddition reactions of vinyl azides. Nat Commun 2019; 10:3158. [PMID: 31320649 PMCID: PMC6639305 DOI: 10.1038/s41467-019-11134-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 06/25/2019] [Indexed: 12/16/2022] Open
Abstract
Vinyl azides, bearing conjugated azide and alkene functional groups, have been recognized as versatile building blocks in organic synthesis. In general vinyl azides act as 3-atom (CCN) synthons through the fast release of molecular nitrogen and have been extensively utilized in the construction of structurally diverse N-heterocycles. Keeping the azide moiety intact in organic transformations to synthesis chiral azides is an important but challenging task. Herein, we report an enantioselective copper(II)/BOX-catalyzed cycloaddition of vinyl azides, generating diverse chiral cyclic azides. α-Aryl substituted vinyl azides react with unsaturated keto esters through an inverse-electron-demand hetero-Diels-Alder reaction to afford chiral azido dihydropyrans with excellent enatioselectivities. In contrast, cyclohexenyl azides undergo a diastereo- and enantio-selective Diels-Alder reaction giving important azido octahydronaphthalenes with three continuous stereogenic centers. Notable features of these reactions include a very broad scope, mild reaction conditions and 100% atom economy. Vinyl azides generally act as 3-atom synthon through the fast release of molecular nitrogen, whereas keeping the azide group intact is more challenging. Here, the authors show a copper-catalyzed enantioselective cycloaddition of two types of vinyl azides generating a diverse pool of valuable chiral cyclic azides.
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Affiliation(s)
- Nuligonda Thirupathi
- Key Lab of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, No. 27 South Shanda Road, 250100, Jinan, Shandong, China
| | - Fang Wei
- Key Lab of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, No. 27 South Shanda Road, 250100, Jinan, Shandong, China
| | - Chen-Ho Tung
- Key Lab of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, No. 27 South Shanda Road, 250100, Jinan, Shandong, China
| | - Zhenghu Xu
- Key Lab of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, No. 27 South Shanda Road, 250100, Jinan, Shandong, China. .,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 200032, Shanghai, PR China.
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45
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Liang Y, Zhao X. Enantioselective Construction of Chiral Sulfides via Catalytic Electrophilic Azidothiolation and Oxythiolation of N-Allyl Sulfonamides. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01900] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yaoyu Liang
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, People’s Republic of China
| | - Xiaodan Zhao
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, People’s Republic of China
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46
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Abstract
Allylic azides are underutilized in organic synthesis when compared to other organic azides or other allylic functionality. This is likely because allylic azides rearrange at room temperature, resulting in a potentially complex mixture of azides. This rearrangement has been termed the Winstein rearrangement. Understanding the mechanism and basic principles governing the allylic azide equilibrium may aid in developing applications for these molecules based on either alkene or azide functionalization. Presented herein is a compilation of the key observations regarding the nature of the allylic azide rearrangement. Mechanistic considerations are explicitly addressed with key examples from the literature.
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Affiliation(s)
- Amy A Ott
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Joseph J Topczewski
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
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47
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Cao W, Feng X, Liu X. Reversal of enantioselectivity in chiral metal complex-catalyzed asymmetric reactions. Org Biomol Chem 2019; 17:6538-6550. [PMID: 31219126 DOI: 10.1039/c9ob01027k] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Asymmetric catalysis represents an efficient approach to prepare optically active compounds. Commonly, both enantiomers of a chiral catalyst are used to synthesize two enantiomers of a chiral compound, however, it is quite difficult to obtain the catalysts with opposite configurations in most cases. Thus, chemists pay much attention to look for new strategies. Enantiodivergent synthesis demonstrates cost effectiveness and practicability to solve this issue by tuning the reaction parameters with the use of ligands derived from a single chiral source. In 2003 and 2008, two reviews have commendably summarized the enantiodivergent reactions, and some representative examples were illustrated. In this review, reversal of enantioselectivity in metal complex-mediated asymmetric catalysis from 2008 to present was updated. Several factors of delivering enantiodivergence are introduced, including metal salts, ligands, additives, solvents, temperature and so on.
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Affiliation(s)
- Weidi Cao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China.
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China.
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China.
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48
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Carlson AS, Topczewski JJ. Allylic azides: synthesis, reactivity, and the Winstein rearrangement. Org Biomol Chem 2019; 17:4406-4429. [PMID: 30969292 PMCID: PMC6530792 DOI: 10.1039/c8ob03178a] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Organic azides are useful synthetic intermediates, which demonstrate broad reactivity. Unlike most organic azides, allylic azides can spontaneously rearrange to form a mixture of isomers. This rearrangement has been named the Winstein rearrangement. Using allylic azides can result in low yields and azide racemization in some synthetic contexts due to the Winstein rearrangement. Effort has been made to understand the mechanism of the Winstein rearrangement and to take advantage of this process. Several guiding principles can be used to identify which azides will produce a mixture of isomers and which will resist rearrangement. Selective reaction conditions can be used to differentiate the azide isomers in a dynamic manner. This review covers all aspects of allylic azides including their synthesis, their reactivity, the mechanism of the Winstein rearrangement, and reactions that can selectively elaborate an azide isomer. This review covers the literature from Winstein's initial report to early 2019.
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Affiliation(s)
- Angela S Carlson
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455, USA.
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49
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Thakuri RS, Schmidt JAR. Palladium-Based Hydroamination Catalysts Employing Sterically Demanding 3-Iminophosphines: Branched Kinetic Products by Prevention of Allylamine Isomerization. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rajendr S. Thakuri
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, College of Natural Sciences and Mathematics, The University of Toledo, 2801 W. Bancroft Street, MS 602, Toledo, Ohio 43606-3390, United States
| | - Joseph A. R. Schmidt
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, College of Natural Sciences and Mathematics, The University of Toledo, 2801 W. Bancroft Street, MS 602, Toledo, Ohio 43606-3390, United States
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50
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Lin JS, Li TT, Jiao GY, Gu QS, Cheng JT, Lv L, Liu XY. Chiral Brønsted Acid Catalyzed Dynamic Kinetic Asymmetric Hydroamination of Racemic Allenes and Asymmetric Hydroamination of Dienes. Angew Chem Int Ed Engl 2019; 58:7092-7096. [PMID: 30919531 DOI: 10.1002/anie.201900955] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/19/2019] [Indexed: 12/31/2022]
Abstract
The first highly efficient and practical chiral Brønsted acid catalyzed dynamic kinetic asymmetric hydroamination (DyKAH) of racemic allenes and asymmetric hydroamination of unactivated dienes with both high E/Z selectivity and enantioselectivity are described herein. The transformation proceeds through a new catalytic asymmetric model involving a highly reactive π-allylic carbocationic intermediate, generated from racemic allenes or dienes through a proton transfer mediated by an activating/directing thiourea group. This method affords expedient access to structurally diverse enantioenriched, potentially bioactive alkenyl-containing aza-heterocycles and bicyclic aza-heterocycles.
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Affiliation(s)
- Jin-Shun Lin
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China.,Department of Chemistry, Tsinghua University, Beijing, 100084, China.,Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Tao-Tao Li
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Guan-Yuan Jiao
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jiang-Tao Cheng
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Ling Lv
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xin-Yuan Liu
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
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