1
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Zhang WW, Sha Q. B(C 6F 5) 3-Catalyzed Multicomponent Reactions of 2,3-Diketoesters, Amines, Allenes, and Nucleophiles: Synthesis of 2α-Functionalized Pyrroles. J Org Chem 2024; 89:12286-12297. [PMID: 39146254 DOI: 10.1021/acs.joc.4c01221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
An efficient B(C6F5)3-catalyzed multicomponent reaction of 2,3-diketoesters, amines, allenes, and nucleophiles was reported, which afforded 2α-functionalized pyrroles in moderate to good yields. The reaction features low catalyst loading, usage of a small amount of solvent, high atom economy, tunable installation of diverse functional groups at 2α-position, and water being formed as the byproduct. This is the first multicomponent reaction that combines vicinal tricarbonyl compounds with allenes.
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Affiliation(s)
- Wei-Wei Zhang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu, Nanjing 210095, P. R. China
| | - Qiang Sha
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu, Nanjing 210095, P. R. China
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2
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The study of stereoselectivity and mesomeric effect of N-nitrosamines via 1H NMR spectroscopy. Struct Chem 2023. [DOI: 10.1007/s11224-022-02109-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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3
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Zheng Y, Fang X, Deng WH, Zhao B, Liao RZ, Xie Y. Direct activation of alcohols via perrhenate ester formation for an intramolecular dehydrative Friedel–Crafts reaction. Org Chem Front 2022. [DOI: 10.1039/d2qo00229a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general and highly efficient intramolecular dehydrative Friedel–Crafts reactions via Re2O7 mediated hydroxyl group activation is described for the syntheses of tetrahydronaphthalene, tetrahydroquinoline, tetrahydroisoquinoline, chromane, and isochromane derivatives.
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Affiliation(s)
- Yuzhu Zheng
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Xiong Fang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Wen-Hao Deng
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Bin Zhao
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Rong-Zhen Liao
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Youwei Xie
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
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4
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Liu HX, Ji F, Chen Y, Gao Y, Wang JK, Zhang MZ, Liu F, Sha Q. De Novo and Divergent Synthesis of Highly Functionalized Furans by Cascade Reactions of 2-Hydroxy-1,4-diones with Nucleophiles. Chemistry 2021; 27:5225-5229. [PMID: 33427337 DOI: 10.1002/chem.202005098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/17/2020] [Indexed: 11/10/2022]
Abstract
Herein, a divergent synthesis of a variety of 2α- and 5α-substituted furan derivatives from 2-hydroxy-1,4-diones is reported. By using appropriate substrates and an acid catalyst, the reactions occurred selectively through cyclization/1,6-conjugate addition or cyclization/Friedel-Crafts-type cascade reactions. A broad range of nucleophilic reagents (>10 types for the 1,6-conjugate addition for 5α substitution and >20 types for the Friedel-Crafts-type cascade reaction for 2α substitution), including alcohols, amides, furan, thiophene, pyrrole, indole, phenols, and many others, can successfully participate in the reactions, providing a universal strategy for a diversity-oriented synthesis of α-substituted furan derivatives. Deuteriation experiments and DFT calculations were carried out to support the proposed reaction mechanisms. Antifungal activity experiments revealed that products with an indole or 4-hydroxycoumarin core substituted at the 2α position showed moderate activities against Rhizoctorzia solani and Botrytis cinerea, respectively.
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Affiliation(s)
- Hai-Xuan Liu
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Fei Ji
- Department of Pharmaceutical Engineering, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing, 211198, P.R. China
| | - Yu Chen
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P.R. China
| | - Ya Gao
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Jun-Ke Wang
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Ming-Zhi Zhang
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Fang Liu
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Qiang Sha
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
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5
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Butnaru I, Sava I, Damaceanu MD. Exploring the impact of triphenylmethane incorporation on physical properties of polyimides with emphasis on optical and halochromic behaviour. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122621] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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6
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Marcyk PT, Jefferies LR, AbuSalim DI, Pink M, Baik M, Cook SP. Stereoinversion of Unactivated Alcohols by Tethered Sulfonamides. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812894] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Paul T. Marcyk
- Department of Chemistry Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - Latisha R. Jefferies
- Department of Chemistry Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - Deyaa I. AbuSalim
- Department of Chemistry Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - Maren Pink
- Department of Chemistry Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - Mu‐Hyun Baik
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Silas P. Cook
- Department of Chemistry Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
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7
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Marcyk PT, Jefferies LR, AbuSalim DI, Pink M, Baik MH, Cook SP. Stereoinversion of Unactivated Alcohols by Tethered Sulfonamides. Angew Chem Int Ed Engl 2019; 58:1727-1731. [PMID: 30536739 DOI: 10.1002/anie.201812894] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 12/07/2018] [Indexed: 12/23/2022]
Abstract
The direct, catalytic substitution of unactivated alcohols remains an undeveloped area of organic synthesis. Moreover, catalytic activation of this difficult electrophile with predictable stereo-outcomes presents an even more formidable challenge. Described herein is a simple iron-based catalyst system which provides the mild, direct conversion of secondary and tertiary alcohols to sulfonamides. Starting from enantioenriched alcohols, the intramolecular variant proceeds with stereoinversion to produce enantioenriched 2- and 2,2-subsituted pyrrolidines and indolines, without prior derivatization of the alcohol or solvolytic conditions.
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Affiliation(s)
- Paul T Marcyk
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
| | - Latisha R Jefferies
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
| | - Deyaa I AbuSalim
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Maren Pink
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Silas P Cook
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
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8
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Xin X, Pan X, Meng Z, Liu X, Liu L. Catalytic enantioselective cross-dehydrogenative coupling of 3,6-dihydro-2H-pyrans with aldehydes. Org Chem Front 2019. [DOI: 10.1039/c9qo00123a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The first catalytic asymmetric cross-dehydrogenative coupling of 3,6-dihydro-2H-pyrans and aldehydes with excellent enantioselectivity is described.
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Affiliation(s)
- Xiaodong Xin
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P.R. China
| | - Xinhui Pan
- School of Pharmaceutical Sciences
- Shandong University
- Jinan 250012
- P.R. China
| | - Zhilin Meng
- School of Pharmaceutical Sciences
- Shandong University
- Jinan 250012
- P.R. China
| | - Xigong Liu
- School of Pharmaceutical Sciences
- Shandong University
- Jinan 250012
- P.R. China
| | - Lei Liu
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P.R. China
- School of Pharmaceutical Sciences
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9
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Farndon JJ, Young TA, Bower JF. Stereospecific Alkene Aziridination Using a Bifunctional Amino-Reagent: An Aza-Prilezhaev Reaction. J Am Chem Soc 2018; 140:17846-17850. [DOI: 10.1021/jacs.8b10485] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Joshua J. Farndon
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Tom A. Young
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - John F. Bower
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
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10
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Pan X, Liu X, Sun S, Meng Z, Liu L. Catalytic Asymmetric Cross-Dehydrogenative Coupling of 2H
-Chromenes and Aldehydes. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800369] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Xinhui Pan
- School of Pharmaceutical Sciences; Shandong University; Jinan Shandong 250012 China
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education; School of Pharmaceutical Sciences, Shihezi University; Shihezi Xinjiang 832002 China
| | - Xigong Liu
- School of Pharmaceutical Sciences; Shandong University; Jinan Shandong 250012 China
| | - Shutao Sun
- School of Pharmaceutical Sciences; Shandong University; Jinan Shandong 250012 China
| | - Zhilin Meng
- School of Pharmaceutical Sciences; Shandong University; Jinan Shandong 250012 China
| | - Lei Liu
- School of Pharmaceutical Sciences; Shandong University; Jinan Shandong 250012 China
- School of Chemistry and Chemical Engineering; Shandong University; Jinan Shandong 250100 China
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11
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Yang GP, Dilixiati D, Yang T, Liu D, Yu B, Hu CW. Phosphomolybdic acid as a bifunctional catalyst for Friedel-Crafts type dehydrative coupling reaction. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4450] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Guo-Ping Yang
- Beijing Institute of Technology; Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, School of Chemistry and Chemical Engineering; Beijing 100081 People's Republic of China
- China Academy of Engineering Physics; People's Republic of China
| | - Dilireba Dilixiati
- Beijing Institute of Technology; Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, School of Chemistry and Chemical Engineering; Beijing 100081 People's Republic of China
| | - Tao Yang
- Beijing Institute of Technology; Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, School of Chemistry and Chemical Engineering; Beijing 100081 People's Republic of China
| | - Dong Liu
- Beijing Institute of Technology; Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, School of Chemistry and Chemical Engineering; Beijing 100081 People's Republic of China
| | - Bing Yu
- Zhengzhou University; College of Chemistry and Molecular Engineering; Zhengzhou 450001 Henan Province People's Republic of China
| | - Chang-Wen Hu
- Beijing Institute of Technology; Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, School of Chemistry and Chemical Engineering; Beijing 100081 People's Republic of China
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12
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Mengozzi L, El Garah M, Gualandi A, Iurlo M, Fiorani A, Ciesielski A, Marcaccio M, Paolucci F, Samorì P, Cozzi PG. Phenoxyaluminum(salophen) Scaffolds: Synthesis, Electrochemical Properties, and Self-Assembly at Surfaces of Multifunctional Systems. Chemistry 2018; 24:11954-11960. [PMID: 29603481 DOI: 10.1002/chem.201801118] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 03/26/2018] [Indexed: 11/08/2022]
Abstract
Salophens and Salens are Schiff bases generated through the condensation of two equivalents of salicylaldehyde with either 1,2-phenylenediamines or aliphatic diamines, respectively. Both ligands have been extensively exploited as key building blocks in coordination chemistry and catalysis. In particular, their metal complexes have been widely used for various catalytical transformations with high yield and selectivity. Through the modification of the phenol unit it is possible to tune the steric hindrance and electronic properties of Salophen and Salen. The introduction of long aliphatic chains in salicylaldehydes can be used to promote their self-assembly into ordered supramolecular structures on solid surfaces. Herein, we report a novel method towards the facile synthesis of robust and air-stable [Al(Salophen)] derivatives capable of undergoing spontaneous self-assembly at the graphite/solution interface forming highly-ordered nanopatterns. The new synthetic approach relies on the use of [MeAlIII (Salophen)] as a building unit to introduce, via a simple acid/base reaction with functionalized acidic phenol derivatives, selected frameworks integrating multiple functions for efficient surface decoration. STM imaging at the solid/liquid interface made it possible to monitor the formation of ordered supramolecular structures. In addition, the redox properties of the Salophen derivatives functionalized with ferrocene units in solution and on surface were unraveled by cyclic voltammetry. The use of a five-coordinate aluminum alkyl Salophen precursor enables the tailoring of new Salophen molecules capable of undergoing controlled self-assembly on HOPG, and thereby it can be exploited to introduce multiple functionalities with subnanometer precision at surfaces, ultimately forming ordered functional patterns.
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Affiliation(s)
- Luca Mengozzi
- Dipartimento di Chimica "G. Ciamician", ALMA MATER STUDIORUM Università di Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Mohamed El Garah
- University of Strasbourg, CNRS, ISIS UMR 700, 8 alleé Gaspard Monge, 67000, Strasbourg, France
| | - Andrea Gualandi
- Dipartimento di Chimica "G. Ciamician", ALMA MATER STUDIORUM Università di Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Matteo Iurlo
- Dipartimento di Chimica "G. Ciamician", ALMA MATER STUDIORUM Università di Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Andrea Fiorani
- Dipartimento di Chimica "G. Ciamician", ALMA MATER STUDIORUM Università di Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Artur Ciesielski
- University of Strasbourg, CNRS, ISIS UMR 700, 8 alleé Gaspard Monge, 67000, Strasbourg, France
| | - Massimo Marcaccio
- Dipartimento di Chimica "G. Ciamician", ALMA MATER STUDIORUM Università di Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Francesco Paolucci
- Dipartimento di Chimica "G. Ciamician", ALMA MATER STUDIORUM Università di Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Paolo Samorì
- University of Strasbourg, CNRS, ISIS UMR 700, 8 alleé Gaspard Monge, 67000, Strasbourg, France
| | - Pier Giorgio Cozzi
- Dipartimento di Chimica "G. Ciamician", ALMA MATER STUDIORUM Università di Bologna, Via Selmi 2, 40126, Bologna, Italy
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13
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Li SS, Zhou L, Wang L, Zhao H, Yu L, Xiao J. Organocatalytic C(sp 3)-H Functionalization via Carbocation-Initiated Cascade [1,5]-Hydride Transfer/Cyclization: Synthesis of Dihydrodibenzo[b,e]azepines. Org Lett 2017; 20:138-141. [PMID: 29239184 DOI: 10.1021/acs.orglett.7b03492] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Carbocation-initiated cascade [1,5]-hydride transfer/cyclization and dimerization reactions were developed to synthesize dihydrodibenzo[b,e]azepine and octahydrodipyrroloquinoline derivatives in high yields. These redox-neutral C(sp3)-H functionalization-involving cascade reactions feature transition-metal-free, high atom- and step-economy, and environmental friendliness with water as the sole byproduct.
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Affiliation(s)
- Shuai-Shuai Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, China
| | - Lan Zhou
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, China
| | - Liang Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, China
| | - Huaili Zhao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, China
| | - Liping Yu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, China
| | - Jian Xiao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, China
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14
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Xiao M, Ren D, Xu L, Li SS, Yu L, Xiao J. SN1-Type Alkylation of N-Heteroaromatics with Alcohols. Org Lett 2017; 19:5724-5727. [DOI: 10.1021/acs.orglett.7b02294] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mingyan Xiao
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Didi Ren
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Lubin Xu
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Shuai-Shuai Li
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Liping Yu
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Jian Xiao
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
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15
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Di Gregorio G, Mari M, Bartoccini F, Piersanti G. Iron-Catalyzed Direct C3-Benzylation of Indoles with Benzyl Alcohols through Borrowing Hydrogen. J Org Chem 2017; 82:8769-8775. [DOI: 10.1021/acs.joc.7b01603] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Giovanni Di Gregorio
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, P.zza Rinascimento
6, 61029 Urbino, Pesaro and Urbino (PU), Italy
| | - Michele Mari
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, P.zza Rinascimento
6, 61029 Urbino, Pesaro and Urbino (PU), Italy
| | - Francesca Bartoccini
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, P.zza Rinascimento
6, 61029 Urbino, Pesaro and Urbino (PU), Italy
| | - Giovanni Piersanti
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, P.zza Rinascimento
6, 61029 Urbino, Pesaro and Urbino (PU), Italy
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16
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17
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Trillo P, Baeza A. Copper-Catalyzed Asymmetric Allylic Alkylation ofβ-Keto Esters with Allylic Alcohols. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601139] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paz Trillo
- Departamento de Química Orgánica; Facultad de Ciencias; Instituto de Síntesis Orgánica (ISO); Universidad de Alicante; Apdo 99 03080 Alicante Spain
| | - Alejandro Baeza
- Departamento de Química Orgánica; Facultad de Ciencias; Instituto de Síntesis Orgánica (ISO); Universidad de Alicante; Apdo 99 03080 Alicante Spain
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18
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Catalytic Friedel-Crafts Reactions of Highly Electronically Deactivated Benzylic Alcohols. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612573] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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19
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Vuković VD, Richmond E, Wolf E, Moran J. Catalytic Friedel-Crafts Reactions of Highly Electronically Deactivated Benzylic Alcohols. Angew Chem Int Ed Engl 2017; 56:3085-3089. [PMID: 28156038 DOI: 10.1002/anie.201612573] [Citation(s) in RCA: 137] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Indexed: 01/01/2023]
Abstract
Highly electronically deactivated benzylic alcohols, including those with a CF3 group adjacent to the OH-bearing carbon, undergo dehydrative Friedel-Crafts reactions upon exposure to catalytic Brønsted acid in 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) solvent. Titration and kinetic experiments support the involvement of higher order solvent/acid clusters in catalysis.
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Affiliation(s)
- Vuk D Vuković
- University of Strasbourg, CNRS, ISIS UMR 7006, 67000, Strasbourg, France
| | - Edward Richmond
- University of Strasbourg, CNRS, ISIS UMR 7006, 67000, Strasbourg, France
| | - Eléna Wolf
- University of Strasbourg, CNRS, ISIS UMR 7006, 67000, Strasbourg, France
| | - Joseph Moran
- University of Strasbourg, CNRS, ISIS UMR 7006, 67000, Strasbourg, France
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20
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Hikawa H, Machino Y, Toyomoto M, Kikkawa S, Azumaya I. Cationic palladium(ii)-catalyzed dehydrative nucleophilic substitutions of benzhydryl alcohols with electron-deficient benzenethiols in water. Org Biomol Chem 2016; 14:7038-45. [DOI: 10.1039/c6ob01140c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
An efficient direct nucleophilic substitution of benzhydryl alcohols with electron-deficient benzenethiols using cationic Pd(ii) catalysts as Lewis acids in water is reported.
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Affiliation(s)
- Hidemasa Hikawa
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
| | - Yumo Machino
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
| | - Mariko Toyomoto
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
| | - Shoko Kikkawa
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
| | - Isao Azumaya
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
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21
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22
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Nokami T, Yamane Y, Oshitani S, Kobayashi JK, Matsui SI, Nishihara T, Uno H, Hayase S, Itoh T. The β-Silyl Effect on the Memory of Chirality in Friedel-Crafts Alkylation Using Chiral α-Aryl Alcohols. Org Lett 2015; 17:3182-5. [PMID: 26067720 DOI: 10.1021/acs.orglett.5b01582] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Iron salt-catalyzed Friedel-Crafts alkylation of chiral α-aryl alcohols with a trimethylsilyl group was found to proceed with retention of the configuration of the hydroxyl group as a leaving group. The memory of chirality of this system stems from the β-silyl effect of the trimethylsilyl group on the carbocation intermediate.
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Affiliation(s)
| | | | | | | | | | | | - Hidemitsu Uno
- §Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, 2-5 Bunkyo-cho, Matsuyama City 790-8577, Ehime, Japan
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23
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Armenise N, Dughera S, Gualandi A, Mengozzi L, Barbero M, Cozzi PG. Organocatalyzed Asymmetric Alkylation of Stable Aryl or Heteroaryl(3-indolyl)methyliumo-Benzenedisulfonimides. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201402275] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Gualandi A, Mengozzi L, Wilson CM, Cozzi PG. Synergy, Compatibility, and Innovation: Merging Lewis Acids with Stereoselective Enamine Catalysis. Chem Asian J 2014; 9:984-95. [DOI: 10.1002/asia.201301549] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Indexed: 01/03/2023]
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25
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Nitsch D, Huber SM, Pöthig A, Narayanan A, Olah GA, Prakash GKS, Bach T. Chiral Propargylic Cations as Intermediates in SN1-Type Reactions: Substitution Pattern, Nuclear Magnetic Resonance Studies, and Origin of the Diastereoselectivity. J Am Chem Soc 2014; 136:2851-7. [DOI: 10.1021/ja411772n] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Dominik Nitsch
- Department
Chemie and Catalysis Research Center (CRC), Technische Universität München, D-85747 Garching, Germany
| | - Stefan M. Huber
- Department
Chemie and Catalysis Research Center (CRC), Technische Universität München, D-85747 Garching, Germany
| | - Alexander Pöthig
- Department
Chemie and Catalysis Research Center (CRC), Technische Universität München, D-85747 Garching, Germany
| | - Arjun Narayanan
- Loker
Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089-1661, United States
| | - George A. Olah
- Loker
Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089-1661, United States
| | - G. K. Surya Prakash
- Loker
Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089-1661, United States
| | - Thorsten Bach
- Department
Chemie and Catalysis Research Center (CRC), Technische Universität München, D-85747 Garching, Germany
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26
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Yasu Y, Arai Y, Tomita R, Koike T, Akita M. Highly Regio- and Diastereoselective Synthesis of CF3-Substituted Lactones via Photoredox-Catalyzed Carbolactonization of Alkenoic Acids. Org Lett 2014; 16:780-3. [DOI: 10.1021/ol403500y] [Citation(s) in RCA: 139] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yusuke Yasu
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8503, Japan
| | - Yusuke Arai
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8503, Japan
| | - Ren Tomita
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8503, Japan
| | - Takashi Koike
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8503, Japan
| | - Munetaka Akita
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8503, Japan
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27
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Hellal M, Falk FC, Wolf E, Dryzhakov M, Moran J. Breaking the dichotomy of reactivity vs. chemoselectivity in catalytic SN1 reactions of alcohols. Org Biomol Chem 2014; 12:5990-4. [DOI: 10.1039/c4ob01265h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
B(C6F5)3 possesses a different reactivity/chemoselectivity profile than traditional Lewis and Brønsted acids and is effective at enabling catalytic SN1 reactions of alcohols in the presence of acid sensitive groups without compromising reaction rates, substrate scope or catalyst loadings.
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Affiliation(s)
- Malik Hellal
- ISIS
- Université de Strasbourg
- 67083 Strasbourg, France
| | | | - Eléna Wolf
- ISIS
- Université de Strasbourg
- 67083 Strasbourg, France
| | | | - Joseph Moran
- ISIS
- Université de Strasbourg
- 67083 Strasbourg, France
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28
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Trillo P, Baeza A, Nájera C. Copper-Catalyzed Asymmetric Alkylation of β-Keto Esters with Xanthydrols. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300627] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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29
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Romo JM, Gálvez E, Nubiola I, Romea P, Urpí F, Kindred M. Diastereoselective Methyl Orthoformate Alkylations of ChiralN-Acylthiazolidinethiones Catalyzed by Nickel(II) Complexes. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300521] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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30
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Naredla RR, Klumpp DA. Contemporary Carbocation Chemistry: Applications in Organic Synthesis. Chem Rev 2013; 113:6905-48. [DOI: 10.1021/cr4001385] [Citation(s) in RCA: 263] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Rajasekhar Reddy Naredla
- Department of Chemistry
and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115,
United States
| | - Douglas A. Klumpp
- Department of Chemistry
and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115,
United States
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31
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Petruzziello D, Stenta M, Mazzanti A, Cozzi PG. A Rational Approach Towards a New Ferrocenyl Pyrrolidine for Stereoselective Enamine Catalysis. Chemistry 2013; 19:7696-700. [DOI: 10.1002/chem.201300959] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Indexed: 11/10/2022]
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32
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Mondal D, Li SY, Bellucci L, Laino T, Tafi A, Guccione S, Lepore SD. Stereoretentive chlorination of cyclic alcohols catalyzed by titanium(IV) tetrachloride: evidence for a front side attack mechanism. J Org Chem 2013; 78:2118-27. [PMID: 23298402 PMCID: PMC3586301 DOI: 10.1021/jo3023439] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A mild chlorination reaction of alcohols was developed using the classical thionyl chloride reagent but with added catalytic titanium(IV) chloride. These reactions proceeded rapidly to afford chlorination products in excellent yields and with preference for retention of configuration. Stereoselectivities were high for a variety of chiral cyclic secondary substrates including sterically hindered systems. Chlorosulfites were first generated in situ and converted to alkyl chlorides by the action of titanium tetrachloride which is thought to chelate the chlorosulfite leaving group and deliver the halogen nucleophile from the front face. To better understand this novel reaction pathway, an ab initio study was undertaken at the DFT level of theory using two different computational approaches. This computational evidence suggests that while the reaction proceeds through a carbocation intermediate, this charged species likely retains pyramidal geometry existing as a conformational isomer stabilized through hyperconjugation (hyperconjomers). These carbocations are then essentially "frozen" in their original configurations at the time of nucleophilic capture.
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Affiliation(s)
- Deboprosad Mondal
- Department of Chemistry, Florida Atlantic University, Boca Raton, Florida 33431
| | - Song Ye Li
- Department of Chemistry, Florida Atlantic University, Boca Raton, Florida 33431
| | - Luca Bellucci
- Center S3, CNR Institute of Nanoscience, Via Campi 213/A, I-41125 Modena, Italy
| | - Teodoro Laino
- IBM Zurich Research Laboratory, CH-8803 Rüeschlikon, Switzerland
| | - Andrea Tafi
- Dipartimento Farmaco Chimico Tecnologico, Università degli Studi di Siena, I-53100 Siena, Italy
| | - Salvatore Guccione
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, I-95125 Catania, Italy
| | - Salvatore D. Lepore
- Department of Chemistry, Florida Atlantic University, Boca Raton, Florida 33431
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33
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Mayr H, Lakhdar S, Maji B, Ofial AR. A quantitative approach to nucleophilic organocatalysis. Beilstein J Org Chem 2012; 8:1458-78. [PMID: 23019481 PMCID: PMC3458771 DOI: 10.3762/bjoc.8.166] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Accepted: 07/31/2012] [Indexed: 12/23/2022] Open
Abstract
The key steps in most organocatalytic cyclizations are the reactions of electrophiles with nucleophiles. Their rates can be calculated by the linear free-energy relationship log k(20 °C) = s(N)(E + N), where electrophiles are characterized by one parameter (E) and nucleophiles are characterized by the solvent-dependent nucleophilicity (N) and sensitivity (s(N)) parameters.Electrophilicity parameters in the range -10 < E < -5 were determined for iminium ions derived from cinnamaldehyde and common organocatalysts, such as pyrrolidines and imidazolidinones, by studying the rates of their reactions with reference nucleophiles. Iminium activated reactions of α,β-unsaturated aldehydes can, therefore, be expected to proceed with nucleophiles of 2 < N < 14, because such nucleophiles are strong enough to react with iminium ions but weak enough not to react with their precursor aldehydes. With the N parameters of enamines derived from phenylacetaldehyde and MacMillan's imidazolidinones one can rationalize why only strong electrophiles, such as stabilized carbenium ions (-8 < E < -2) or hexachlorocyclohexadienone (E = -6.75), are suitable electrophiles for enamine activated reactions with imidazolidinones. Several mechanistic controversies concerning iminium and enamine activated reactions could thus be settled by studying the reactivities of independently synthesized intermediates.Kinetic investigations of the reactions of N-heterocyclic carbenes (NHCs) with benzhydrylium ions showed that they have similar nucleophilicities to common organocatalysts (e.g., PPh(3), DMAP, DABCO) but are much stronger (100-200 kJ mol(-1)) Lewis bases. While structurally analogous imidazolylidenes and imidazolidinylidenes have comparable nucleophilicities and Lewis basicities, the corresponding deoxy Breslow intermediates differ dramatically in reactivity. The thousand-fold higher nucleophilicity of 2-benzylidene-imidazoline relative to 2-benzylidene-imidazolidine is explained by the gain of aromaticity during electrophilic additions to the imidazoline derivatives. O-Methylated Breslow intermediates are a hundred-fold less nucleophilic than deoxy Breslow intermediates.
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Affiliation(s)
- Herbert Mayr
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandstr. 5-13 (Haus F), 81377 München, Germany
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34
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Uehara K, Fukaya K, Mizuno N. Reactive N-protonated isocyanate species stabilized by bis(μ-hydroxo)divanadium(IV)-substituted polyoxometalate. Angew Chem Int Ed Engl 2012; 51:7715-8. [PMID: 22736381 DOI: 10.1002/anie.201108205] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 04/17/2012] [Indexed: 11/10/2022]
Abstract
O- or N-protonated? The bis(μ-hydroxo)divanadium(IV)-substituted γ-Keggin-type polyoxometalate (see picture, left) (TBA)(4)[γ-SiV(IV)(2)W(10)O(36)(μ-OH)(4)] (TBA = tetra(n-butyl)ammonium) was synthesized and characterized by X-ray crystallography. Its reaction with phenyl isocyanate gave (TBA)(4)[γ-SiV(IV)(2)W(10)O(38)(μ-OH)(2)(PhNHCO)(2)], which contains two N-protonated phenyl isocyanate species and catalyzes the cyclotrimerization of phenyl isocyanate.
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Affiliation(s)
- Kazuhiro Uehara
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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35
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Stiller J, Vorholt AJ, Ostrowski KA, Behr A, Christmann M. Enantioselective Tandem Reactions at Elevated Temperatures: One-Pot Hydroformylation/SN1 Alkylation. Chemistry 2012; 18:9496-9. [DOI: 10.1002/chem.201200639] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2012] [Indexed: 11/06/2022]
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36
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Uehara K, Fukaya K, Mizuno N. Reactive N-Protonated Isocyanate Species Stabilized by Bis(μ-hydroxo)divanadium(IV)-Substituted Polyoxometalate. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201108205] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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37
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Kumar R, Whitfield DM. Could Diastereoselectivity in the Presence of O-2 Chiral Nonparticipating Groups Be an Indicator of Glycopyranosyl Oxacarbenium Ions in Glycosylation Reactions? J Org Chem 2012; 77:3724-39. [DOI: 10.1021/jo202563f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Rishi Kumar
- National Research Council, Institute for Biological Sciences, 100 Sussex Drive, Ottawa, Ontario,
Canada K1A 0R6
| | - Dennis M. Whitfield
- National Research Council, Institute for Biological Sciences, 100 Sussex Drive, Ottawa, Ontario,
Canada K1A 0R6
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38
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Wilcke D, Herdtweck E, Bach T. SN1-Type Substitution Reactions ofN-Protected β-Hydroxytyrosine Esters: Stereoselective Synthesis of β-Aryl and β-Alkyltyrosines. Chem Asian J 2012; 7:1372-82. [DOI: 10.1002/asia.201101016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Indexed: 11/09/2022]
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39
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Tak-Tak L, Dhimane H, Dalko PI. Asymmetric α Alkylation of Aldehydes: Efficiency with Elegance. Angew Chem Int Ed Engl 2011; 50:12146-7. [DOI: 10.1002/anie.201105001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 09/07/2011] [Indexed: 11/06/2022]
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40
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41
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Reddy CR, Radhika L, Kumar TP, Chandrasekhar S. First Acid-Catalyzed Entry to O-Alkylated Hydroximides from Benzylic Alcohols. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100797] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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42
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Gualandi A, Emer E, Capdevila MG, Cozzi PG. Highly Enantioselective α Alkylation of Aldehydes with 1,3-Benzodithiolylium Tetrafluoroborate: A Formal Organocatalytic α Alkylation of Aldehydes by the Carbenium Ion. Angew Chem Int Ed Engl 2011; 50:7842-6. [DOI: 10.1002/anie.201102562] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2011] [Indexed: 11/07/2022]
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43
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Debleds O, Gayon E, Vrancken E, Campagne JM. Gold-catalyzed propargylic substitutions: Scope and synthetic developments. Beilstein J Org Chem 2011; 7:866-77. [PMID: 21804883 PMCID: PMC3135077 DOI: 10.3762/bjoc.7.99] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Accepted: 06/08/2011] [Indexed: 12/24/2022] Open
Abstract
This personal account summarizes our recent developments in gold-catalyzed direct substitutions on propargylic (allylic, benzylic) alcohols, with various nucleophiles (and bi-nucleophiles) based on the σ- and/or π-acidity of gold(III) complexes. Synthetic developments are also briefly described.
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Affiliation(s)
- Olivier Debleds
- Institut Charles Gerhardt, UMR 5253, Equipe AM2N, ENSCM 8 rue de l'Ecole Normale, 34296 Montpellier Cédex, France
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44
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Gualandi A, Emer E, Capdevila MG, Cozzi PG. Highly Enantioselective α Alkylation of Aldehydes with 1,3-Benzodithiolylium Tetrafluoroborate: A Formal Organocatalytic α Alkylation of Aldehydes by the Carbenium Ion. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102562] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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45
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Sinisi R, Vita MV, Gualandi A, Emer E, Cozzi PG. SN1-Type Reactions in the Presence of Water: Indium(III)-Promoted Highly Enantioselective Organocatalytic Propargylation of Aldehydes. Chemistry 2011; 17:7404-8. [DOI: 10.1002/chem.201100729] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2011] [Indexed: 11/10/2022]
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46
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Guin J, Besnard C, Pattison P, Lacour J. Highly selective additions of hydride and organolithium nucleophiles to helical carbenium ions. Chem Sci 2011. [DOI: 10.1039/c0sc00525h] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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47
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Capdevila MG, Benfatti F, Zoli L, Stenta M, Cozzi PG. Merging Organocatalysis with an Indium(III)-Mediated Process: A Stereoselective α-Alkylation of Aldehydes with Allylic Alcohols. Chemistry 2010; 16:11237-41. [DOI: 10.1002/chem.201001693] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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