1
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Wu XX, He Y, Qiao XX, Ma T, Zou CP, Li G, Zhao XJ. Organocatalyzed Enantioselective Aza-Morita-Baylis-Hillman Reaction of Cyclic Ketimine with α,β-Unsaturated γ-Butyrolactam. J Org Chem 2023. [PMID: 37157120 DOI: 10.1021/acs.joc.2c02765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The enantioselective aza-MBH reaction is an efficient strategy for constructing novel carbon-carbon bonds, providing access to multitudinous chiral densely functionalized MBH products. However, the enantioselective aza-MBH reaction of cyclic-ketimines that would generate a versatile synthon is still missing and challenging. Herein, we developed a challenging direct organocatalytic asymmetric aza-MBH reaction involving cyclic ketimines attached to a neutral functional group. Moreover, the α,β-unsaturated γ-butyrolactam was utilized as a rare nucleophile alkene in this work. The reactions provide enantiomerically enriched 2-alkenyl-2-phenyl-1,2-dihydro-3H-indol-3-ones, bearing with a tetra-substituted stereogenic center. Moreover, this reaction features high α-selectivities, high enantioselectivities (up to 99% ee), and good yields (up to 80%).
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Affiliation(s)
- Xi-Xi Wu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming 650500, China
| | - Yonghui He
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming 650500, China
| | - Xiu-Xiu Qiao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming 650500, China
| | - Tao Ma
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming 650500, China
| | - Chang-Peng Zou
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming 650500, China
| | - Ganpeng Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming 650500, China
| | - Xiao-Jing Zhao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming 650500, China
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2
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Pimentel RLG, da Silva RB, Vasconcellos MLADA, Lima-Junior CG, da Silva FF. Mixed-Metal Cu-Mn iminodiacetate coordination polymer as heterogeneous catalyst for Morita-Baylis-Hillman reactions. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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3
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Zhao Y, Zhu M, Shang H, Cheng X, Ramella D, Zhu K, Luan Y. UiO-67 Metal-organic framework immobilized Fe3+ catalyst for efficient Morita-Baylis-Hillman reaction. NEW J CHEM 2022. [DOI: 10.1039/d1nj04544j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A solvothermal technique was used to prepare UiO-67, a metal-organic framework based on Zirconium; immobilized Fe3+ active sites were added using a facile post-synthetic modification method. The as-synthesized catalyst UiO-67@Fe...
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4
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Gondo N, Hyakutake R, Fujimura K, Ueda Y, Nakano K, Tsutsumi R, Yamanaka M, Kawabata T. Catalyst‐Dependent Rate‐Determining Steps in Regiodivergent Vinylogous Aza‐Morita‐Baylis‐Hillman Reactions with
N
‐Ts Imines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Naruhiro Gondo
- Institute for Chemical Research Kyoto University Gokasho, Uji, Kyoto 611-0011 Japan
| | - Ryuichi Hyakutake
- Institute for Chemical Research Kyoto University Gokasho, Uji, Kyoto 611-0011 Japan
| | - Koki Fujimura
- Institute for Chemical Research Kyoto University Gokasho, Uji, Kyoto 611-0011 Japan
| | - Yoshihiro Ueda
- Institute for Chemical Research Kyoto University Gokasho, Uji, Kyoto 611-0011 Japan
| | - Katsuhiko Nakano
- Department of Chemistry and Research Center for Smart Molecules Rikkyo University 3-34-1 Nishi-ikebukuro Toshima-ku, Tokyo 171-8588 Japan
| | - Ryosuke Tsutsumi
- Department of Chemistry and Research Center for Smart Molecules Rikkyo University 3-34-1 Nishi-ikebukuro Toshima-ku, Tokyo 171-8588 Japan
| | - Masahiro Yamanaka
- Department of Chemistry and Research Center for Smart Molecules Rikkyo University 3-34-1 Nishi-ikebukuro Toshima-ku, Tokyo 171-8588 Japan
| | - Takeo Kawabata
- Institute for Chemical Research Kyoto University Gokasho, Uji, Kyoto 611-0011 Japan
- Department of Pharmaceutical Sciences International University of Health and Welfare 137-1 Enokizu Okawa, Fukuoka 831-8501 Japan
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5
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Nahar LA, Kumer A, Khan MW. Investigation of catalytic effect on carbon-carbon bond formation by Baylis-Hillman (BH) reaction between (2/3/4)-nitro-arylaldehyde and alkylacrylates and computational approaches through DFT functional. Heliyon 2021; 7:e08139. [PMID: 34712852 PMCID: PMC8529513 DOI: 10.1016/j.heliyon.2021.e08139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/17/2021] [Accepted: 10/04/2021] [Indexed: 11/18/2022] Open
Abstract
The 4-diazabicyclo[2. 2. 2] octane, DABCO, had widely established with gigantic and celestial applications on catalysis for carbon-carbon bond formation reactions. Thus, it has been employed to synthesize the alkyl 2-(hydroxyl (nitrophenyl) methyl)acrylate by the reaction of arylaldehydes and alkylacrylates under a mild condition with good yields. First of all, reaction was examined effect of various solvents, such as water, MeOH, Dioxane, DMSO, t-Butanol, DMF, Toluene, and THF and THF was the best solvent in term of yield. Next, the room temperature (R.T) was the optimized condition than 60 °C and 80 °C. The overall reaction progress was monitored in presence of DABCO, Et3N, C2H5ONa, C4H9OK, (CH3)3COK and pyridine catalysts with THF solvents at room temperatures, and calculated the amount for superior of catalyst. There was no product obtained in presence of catalysts, such as Et3N, C2H5ONa, C4H9OK, (CH3)3COK and pyridine. But in present of DABCO, this reaction has proceeded and monitored the concentration of catalyst and various temperature effects on reaction progress. In addition, the computational approaches for speculative investigation of solvents effect has employed for predicating and comparatively verified with the proposed reaction mechanism in presence of DABCO catalyst through the Density Functional Theory (DFT). The most acceptable tools for the thermodynamic had been illustrated to get the reaction kinetics by formation energy, entropy, enthalpy for reactant, product and transition state. Finally, the Gibbs free energy for reactions from the reactants and product has calculated to predict the occurring spontaneously possibility with and without solvents, and it is said that the reaction is spontaneously occurred through the water, DMSO, THF solvent although it is opposed fact without solvent even other solvents. It might be concluded that the optimization conditions of reaction are the THF solvent in presence of 20% DABCO catalyst at room temperature with high (about 90%) throughout 6–8 h where the 4- position of nitro group in arylaldehyde is the most preferable in case of time and yield.
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Affiliation(s)
- Laila Arifun Nahar
- Organic Research Laboratory, Department of Chemistry, Bangladesh University of Engineering and Technology (BUET), Dhaka, 1000, Bangladesh
| | - Ajoy Kumer
- Organic Research Laboratory, Department of Chemistry, Bangladesh University of Engineering and Technology (BUET), Dhaka, 1000, Bangladesh
| | - Md Wahab Khan
- Organic Research Laboratory, Department of Chemistry, Bangladesh University of Engineering and Technology (BUET), Dhaka, 1000, Bangladesh
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6
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Wood DP, Guan W, Lin S. Titanium and Cobalt Bimetallic Radical Redox Relay for the Isomerization of N-Bz Aziridines to Allylic Amides. SYNTHESIS-STUTTGART 2021; 53:4213-4220. [PMID: 34764520 PMCID: PMC8579959 DOI: 10.1055/s-0037-1610779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Herein a bimetallic radical redox-relay strategy is employed to generate alkyl radicals under mild conditions with titanium(III) catalysis and terminated via hydrogen atom transfer with cobalt(II) catalysis to enact base-free isomerizations of N-Bz aziridines to N-Bz allylic amides. This reaction provides an alternative strategy for the synthesis of allylic amides from alkenes via a three-step sequence to accomplish a formal transpositional allylic amination.
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Affiliation(s)
- Devin P Wood
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA
| | - Weiyang Guan
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA
| | - Song Lin
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA
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Roberts DD, McLaughlin MG. Regioselective Synthesis of Multifunctional Allylic Amines; Access to Ambiphilic Aziridine Scaffolds. Org Lett 2021; 23:4463-4467. [PMID: 34018758 DOI: 10.1021/acs.orglett.1c01398] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We describe, for the first time, a highly regioselective hydrosilylation of propargylic amines. The reaction utilizes a PtCl2/XantPhos catalyst system to deliver hydrosilanes across the alkyne to afford multifunctional allylic amines in high yields. The reaction is tolerant to a wide variety of functional groups and provides high value intermediates with two distinct functional handles. The synthetic applicability of the reaction has been shown through the synthesis of diverse ambiphilic aziridines.
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Affiliation(s)
- Dean D Roberts
- Department of Natural Science, Manchester Metropolitan University, Chester Street, Manchester, M15GD, United Kingdom
| | - Mark G McLaughlin
- Department of Natural Science, Manchester Metropolitan University, Chester Street, Manchester, M15GD, United Kingdom
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8
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Ahmad MS, Ahmad A. Cu-catalyzed cyanomethylation of imines and α,β-alkenes with acetonitrile and its derivatives. RSC Adv 2021; 11:5427-5431. [PMID: 35423113 PMCID: PMC8694676 DOI: 10.1039/d0ra10693c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 01/19/2021] [Indexed: 12/29/2022] Open
Abstract
We describe copper-catalyzed cyanomethylation of imines and α,β-alkenes with a methylnitrile source and provide an efficient route to synthesize arylacrylonitriles and β,γ-unsaturated nitriles. This method tolerates aliphatic and aromatic alkenes substituted with a variety of functional groups such as F, Cl, Br, Me, OMe, tert-Bu, NO2, NH2 and CO2H with good to excellent yields (69-98%). These systems consist of inexpensive, simple copper catalyst and acetonitrile with its derivatives (α-bromo/α-iodo-acetonitrile) and are highly applicable in the industrial production of acrylonitriles.
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Affiliation(s)
| | - Atique Ahmad
- Department of Physical Sciences, Air University, Islamabad Campus Pakistan
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9
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de Andrade JCD, Silva LAT, Lima-Junior CG, Chojnacki J, Vasconcellos MLADA, da Silva R, Alves Júnior S, da Silva FF. Copper and copper-manganese 1D coordination polymers: Synthesis optimization, crystal structure and preliminary studies as catalysts for Baylis–Hillman reactions. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.119985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Gao S, Duan M, Houk KN, Chen M. Chiral Phosphoric Acid Dual‐Function Catalysis: Asymmetric Allylation with α‐Vinyl Allylboron Reagents. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000039] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shang Gao
- Department of Chemistry and Biochemistry Auburn University Auburn AL 36849 USA
| | - Meng Duan
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095 USA
| | - Kendall N. Houk
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095 USA
| | - Ming Chen
- Department of Chemistry and Biochemistry Auburn University Auburn AL 36849 USA
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11
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Gao S, Duan M, Houk KN, Chen M. Chiral Phosphoric Acid Dual‐Function Catalysis: Asymmetric Allylation with α‐Vinyl Allylboron Reagents. Angew Chem Int Ed Engl 2020; 59:10540-10548. [DOI: 10.1002/anie.202000039] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Indexed: 01/09/2023]
Affiliation(s)
- Shang Gao
- Department of Chemistry and Biochemistry Auburn University Auburn AL 36849 USA
| | - Meng Duan
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095 USA
| | - Kendall N. Houk
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095 USA
| | - Ming Chen
- Department of Chemistry and Biochemistry Auburn University Auburn AL 36849 USA
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12
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Takizawa S. Organocatalytic Synthesis of Highly Functionalized Heterocycles by Enantioselective aza-Morita-Baylis-Hillman-Type Domino Reactions. Chem Pharm Bull (Tokyo) 2020; 68:299-315. [PMID: 32238648 DOI: 10.1248/cpb.c19-00900] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Organocatalytic enantioselective domino reactions are an extremely attractive methodology, as their use enables the construction of complex chiral skeletons from readily available starting materials in two or more steps by a single operation under mild reaction conditions. Thus, these reactions can save both the quantity of chemicals and length of time typically required for the isolation and/or purification of synthetic intermediates. Additionally, no metal contamination of the products occurs, given that organocatalysts include no expensive or toxic metals. The aza-Morita-Baylis-Hillman (aza-MBH) reaction is an atom-economical carbon-carbon bond-forming reaction between α,β-unsaturated carbonyl compounds and imines mediated by Lewis base (LB) catalysts, such as nucleophilic phosphines and amines. aza-MBH products are functionalized chiral β-amino acid derivatives that are highly valuable as pharmaceutical raw materials. Although various enantioselective aza-MBH processes have been investigated, very few studies of aza-MBH-type domino reactions have been reported due to the complexity of the aza-MBH process, which involves a Michael/Mannich/H-transfer/β-elimination sequence. Accordingly, in this review article, our recent efforts in the development of enantioselective domino reactions initiated by MBH processes are described. In the domino reactions, chiral organocatalysts bearing Brønsted acid (BA) and/or LB units impart synergistic activation to substrates, leading to the easy synthesis of highly functionalized heterocycles (some of which have tetrasubstituted and/or quaternary carbon stereocenters) in high yield and enantioselectivity.
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Affiliation(s)
- Shinobu Takizawa
- Department of Synthetic Organic Chemistry, Artificial Intelligence Research Center, The Institute of Scientific and Industrial Research, Osaka University
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13
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Zhao LM, Liu K, Li DF. One-Pot Synthesis of Aza-Morita-Baylis-Hillman Adducts via Zinc-Mediated Allylation of 4-Bromocrotonates and Imines. J Org Chem 2019; 84:15429-15436. [PMID: 31657557 DOI: 10.1021/acs.joc.9b02434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An approach to the synthetically valuable β-substituted aza-Morita-Baylis-Hillman (MBH) type products, through zinc-mediated allylation of imines with 4-bromocrotonates followed by subsequent isomerization of the double bond, was developed. Complementary to classical MBH reaction, this reaction utilizes easily available 4-bromocrotonates as the reaction partners, providing a rapid alternative to the traditional use of α,β-unsaturated carbonyl compounds. The short reaction time, one-pot operation, broad substrate scopes, gram-scale synthesis, and synthetic application exemplified the utility and practicability of this method.
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Affiliation(s)
- Li-Ming Zhao
- School of Chemistry and Materials Science , Jiangsu Normal University , Xuzhou 221116 , Jiangsu , China.,State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Kun Liu
- School of Chemistry and Materials Science , Jiangsu Normal University , Xuzhou 221116 , Jiangsu , China
| | - De-Feng Li
- School of Chemistry and Materials Science , Jiangsu Normal University , Xuzhou 221116 , Jiangsu , China
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14
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Espinosa M, Blay G, Cardona L, Fernández I, Muñoz MC, Pedro JR. Lanthanum-pyBOX complexes as catalysts for the enantioselective conjugate addition of malonate esters to β,γ-unsaturated α-ketimino esters. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1437422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Miguel Espinosa
- Facultat de Química, Department de Química Orgànica, Universitat de València, Burjassot, Spain
| | - Gonzalo Blay
- Facultat de Química, Department de Química Orgànica, Universitat de València, Burjassot, Spain
| | - Luz Cardona
- Facultat de Química, Department de Química Orgànica, Universitat de València, Burjassot, Spain
| | - Isabel Fernández
- Facultat de Química, Department de Química Orgànica, Universitat de València, Burjassot, Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada, Universitat Politècnica de València, València, Spain
| | - Jose R. Pedro
- Facultat de Química, Department de Química Orgànica, Universitat de València, Burjassot, Spain
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15
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Frías M, Carrasco AC, Fraile A, Alemán J. A General Asymmetric Formal Synthesis of Aza-Baylis-Hillman Type Products under Bifunctional Catalysis. Chemistry 2017; 24:3117-3121. [DOI: 10.1002/chem.201705218] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Indexed: 01/03/2023]
Affiliation(s)
- María Frías
- Organic Chemistry Department, Módulo 1; Universidad Autónoma de Madrid; Madrid- 28049 Spain
| | - Ana Cristina Carrasco
- Organic Chemistry Department, Módulo 1; Universidad Autónoma de Madrid; Madrid- 28049 Spain
| | - Alberto Fraile
- Organic Chemistry Department, Módulo 1; Universidad Autónoma de Madrid; Madrid- 28049 Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem); Universidad Autónoma de Madrid; 28049 Madrid Spain
| | - José Alemán
- Organic Chemistry Department, Módulo 1; Universidad Autónoma de Madrid; Madrid- 28049 Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem); Universidad Autónoma de Madrid; 28049 Madrid Spain
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16
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Grélaud S, Lusseau J, Massip S, Landais Y. Acyl Radical Addition onto Aza-Baylis-Hillman Adducts: A Stereocontrolled Access to 2,3,5-Trisubstituted Pyrrolidines. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700362] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Simon Grélaud
- Institute of Molecular Sciences; UMR-CNRS 5255; University of Bordeaux; 351 Cours de la libération 33405 Talence cedex France
| | - Jonathan Lusseau
- Institute of Molecular Sciences; UMR-CNRS 5255; University of Bordeaux; 351 Cours de la libération 33405 Talence cedex France
| | - Stéphane Massip
- Institut Européen de Chimie et Biologie; 2, Rue Robert Escarpit 33607 Pessac France
| | - Yannick Landais
- Institute of Molecular Sciences; UMR-CNRS 5255; University of Bordeaux; 351 Cours de la libération 33405 Talence cedex France
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17
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Li Y, Lei J, Chen ZZ, Tang DY, Yuan H, Wang M, Zhu J, Xu ZG. Microwave-Assisted Construction of Pyrrolopyridinone Ring Systems by Using an Ugi/Indole Cyclization Reaction. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600847] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yong Li
- Key Laboratory for Asymmetric Synthesis and Chiral Technology of Sichuan Province; Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; 610041 Chengdu China
| | - Jie Lei
- Key Laboratory for Asymmetric Synthesis and Chiral Technology of Sichuan Province; Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; 610041 Chengdu China
- Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics; Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine; IATTI; Chongqing University of Arts and Sciences; 319 Honghe Ave. 402160 Yongchuan Chongqing China
| | - Zhong-Zhu Chen
- Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics; Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine; IATTI; Chongqing University of Arts and Sciences; 319 Honghe Ave. 402160 Yongchuan Chongqing China
| | - Dian-Yong Tang
- Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics; Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine; IATTI; Chongqing University of Arts and Sciences; 319 Honghe Ave. 402160 Yongchuan Chongqing China
| | - Huan Yuan
- Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics; Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine; IATTI; Chongqing University of Arts and Sciences; 319 Honghe Ave. 402160 Yongchuan Chongqing China
| | - Miao Wang
- Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics; Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine; IATTI; Chongqing University of Arts and Sciences; 319 Honghe Ave. 402160 Yongchuan Chongqing China
| | - Jin Zhu
- Key Laboratory for Asymmetric Synthesis and Chiral Technology of Sichuan Province; Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; 610041 Chengdu China
- Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics; Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine; IATTI; Chongqing University of Arts and Sciences; 319 Honghe Ave. 402160 Yongchuan Chongqing China
| | - Zhi-Gang Xu
- Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics; Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine; IATTI; Chongqing University of Arts and Sciences; 319 Honghe Ave. 402160 Yongchuan Chongqing China
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18
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Colomer I, Gheewala C, Simal C, Velado M, Fernández de la Pradilla R, Viso A. Sulfinyl-Mediated Stereoselective Overman Rearrangements and Diels-Alder Cycloadditions. J Org Chem 2016; 81:4081-97. [PMID: 27093566 DOI: 10.1021/acs.joc.6b00365] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Sulfinyl trichloroacetamides are readily obtained in excellent yields through a highly stereoselective Overman rearrangement. Related bis-allylic substrates lead to amido 2-sulfinyl butadiene derivatives in excellent yields, with total chemo- and diastereoselectivity. These amido dienyl sulfoxides undergo highly selective Diels-Alder cycloadditions with N-phenylmaleimide with remarkable stereocontrol by the sulfoxide moiety.
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Affiliation(s)
- Ignacio Colomer
- Instituto de Química Orgánica General, IQOG-CSIC , Juan de la Cierva 3, 28006 Madrid, Spain
| | - Chirag Gheewala
- Instituto de Química Orgánica General, IQOG-CSIC , Juan de la Cierva 3, 28006 Madrid, Spain
| | - Carmen Simal
- Instituto de Química Orgánica General, IQOG-CSIC , Juan de la Cierva 3, 28006 Madrid, Spain
| | - Marina Velado
- Instituto de Química Orgánica General, IQOG-CSIC , Juan de la Cierva 3, 28006 Madrid, Spain
| | | | - Alma Viso
- Instituto de Química Orgánica General, IQOG-CSIC , Juan de la Cierva 3, 28006 Madrid, Spain
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19
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Wongma K, Bunbamrung N, Thongpanchang T. Synthesis of bridged biarylbisquinones and effects of biaryl dihedral angles on photo- and electro-chemical properties. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Affiliation(s)
- Liang Hong
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006 China
| | - Wangsheng Sun
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
| | - Dongxu Yang
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
| | - Guofeng Li
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
| | - Rui Wang
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006 China
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
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21
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Wang Q, Gao W, Lv H, Zhang X. Enantioselective synthesis of β-substituted chiral allylic amines via Rh-catalyzed asymmetric hydrogenation. Chem Commun (Camb) 2016; 52:11850-11853. [DOI: 10.1039/c6cc06047a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rh–DuanPhos complex-catalyzed asymmetric hydrogenation of α-alkenyl substituted enamides has been developed, which provides a readily accessible approach to chiral allylic amines with excellent enantioselectivities and high regioselectivities.
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Affiliation(s)
- Qingli Wang
- Key Laboratory of Biomedical Polymers of Ministry of Education & College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- China
| | - Wenchao Gao
- Key Laboratory of Biomedical Polymers of Ministry of Education & College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- China
| | - Hui Lv
- Key Laboratory of Biomedical Polymers of Ministry of Education & College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- China
| | - Xumu Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- China
- Department of Chemistry
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22
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Levin JR, Cheisson T, Carroll PJ, Schelter EJ. Accessing relatively electron poor cerium(iv) hydrazido complexes by lithium cation promoted ligand reduction. Dalton Trans 2016; 45:15249-58. [DOI: 10.1039/c6dt03154d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of substituted N,N′-diarylhydrazines (ArNHNHAr) were reacted with Ce(iii)[N(SiMe3)2]3 and LiN(SiMe3)2 to form complexes of general formula Li4(OEt2)4 [Ce(iv)(ArNNAr)4] where the spectroscopic and redox properties were affected by the ligand substitution.
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Affiliation(s)
- Jessica R. Levin
- P. Roy and Diana T. Vagelos Laboratories
- Department of Chemistry
- University of Pennsylvania
- Philadelphia
- USA
| | - Thibault Cheisson
- P. Roy and Diana T. Vagelos Laboratories
- Department of Chemistry
- University of Pennsylvania
- Philadelphia
- USA
| | - Patrick J. Carroll
- P. Roy and Diana T. Vagelos Laboratories
- Department of Chemistry
- University of Pennsylvania
- Philadelphia
- USA
| | - Eric J. Schelter
- P. Roy and Diana T. Vagelos Laboratories
- Department of Chemistry
- University of Pennsylvania
- Philadelphia
- USA
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23
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Lu X, Schneider U. Aza-Morita–Baylis–Hillman reactions catalyzed by a cyclopropenylidene. Chem Commun (Camb) 2016; 52:12980-12983. [DOI: 10.1039/c6cc06201f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalysis using a bis(dialkylamino)cyclopropenylidene (BAC) has been developed, which relies on a formal umpolung activation of Michael acceptor pro-nucleophiles.
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Affiliation(s)
- Xun Lu
- The University of Edinburgh
- EaStCHEM School of Chemistry
- Edinburgh EH9 3FJ
- UK
| | - Uwe Schneider
- The University of Edinburgh
- EaStCHEM School of Chemistry
- Edinburgh EH9 3FJ
- UK
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24
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Gao Y, Xu Q, Shi M. Enantioselective Synthesis of Polycyclic Indole Derivatives Based on aza-Morita–Baylis–Hillman Reaction. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01579] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuning Gao
- Laboratory for Advanced Materials & Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Qin Xu
- Laboratory for Advanced Materials & Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Min Shi
- Laboratory for Advanced Materials & Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
- Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
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25
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Liu J, Han Z, Wang X, Wang Z, Ding K. Highly Regio- and Enantioselective Alkoxycarbonylative Amination of Terminal Allenes Catalyzed by a Spiroketal-Based Diphosphine/Pd(II) Complex. J Am Chem Soc 2015; 137:15346-9. [DOI: 10.1021/jacs.5b07764] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiawang Liu
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Zhaobin Han
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xiaoming Wang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Zheng Wang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Kuiling Ding
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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26
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Chen J, Li J, Wang J, Li H, Wang W, Guo Y. Phosphine-Catalyzed Aza-MBH Reactions of Vinylpyridines: Efficient and Rapid Access to 2,3,5-Triarylsubstituted 3-Pyrrolines. Org Lett 2015; 17:2214-7. [DOI: 10.1021/acs.orglett.5b00811] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jing Chen
- State Key Laboratory
of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Jianjun Li
- Shanghai
Key Laboratory of New Drug Design, School of Pharmacy, and State Key
Laboratory of Bioengineering Reactor, East China University of Science and Technology, 130 Mei-long Road, Shanghai 200237, China
| | - Jiazhe Wang
- Shanghai
Key Laboratory of New Drug Design, School of Pharmacy, and State Key
Laboratory of Bioengineering Reactor, East China University of Science and Technology, 130 Mei-long Road, Shanghai 200237, China
| | - Hao Li
- Shanghai
Key Laboratory of New Drug Design, School of Pharmacy, and State Key
Laboratory of Bioengineering Reactor, East China University of Science and Technology, 130 Mei-long Road, Shanghai 200237, China
| | - Wei Wang
- Shanghai
Key Laboratory of New Drug Design, School of Pharmacy, and State Key
Laboratory of Bioengineering Reactor, East China University of Science and Technology, 130 Mei-long Road, Shanghai 200237, China
- Department
of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States
| | - Yuewei Guo
- State Key Laboratory
of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
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27
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Periasamy M, Edukondalu A, Reddy PO. Synthesis of chiral 2,3-disubstituted 1,4-diazabicyclo[2.2.2]octane derivatives. J Org Chem 2015; 80:3651-5. [PMID: 25756201 DOI: 10.1021/jo502688b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Racemic 2,3-diaryl-1,4-diazabicyclo[2.2.2]octane (DABCO) derivatives are synthesized from the readily accessible piperazines in 50-64% yield by cyclization using ethylene bromide, triethylamine, and KI at 80 °C. The enantiomerically enriched 2,3-diphenylpiperazine and the 2,3-bis(1-naphthyl)piperazine derivatives are prepared by a resolution method using commercially available optically active acids, yielding the corresponding DABCO derivatives in 51-64% yield with up to 99% ee. This mild cyclization can also be applied to enantiopure camphanyldiamine derivatives, and the products are obtained in 72-86% yields.
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Affiliation(s)
- Mariappan Periasamy
- School of Chemistry, University of Hyderabad Central University, Hyderabad 500046, India
| | - Athukuri Edukondalu
- School of Chemistry, University of Hyderabad Central University, Hyderabad 500046, India
| | - Polimera Obula Reddy
- School of Chemistry, University of Hyderabad Central University, Hyderabad 500046, India
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28
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Efficient and mild method for preparation of allylic amines from aziridine-2-alcohols using PPh3/I2/imidazole. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.08.078] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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29
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Cui Z, Chen YJ, Gao WY, Feng CG, Lin GQ. Enantioselective Alkenylation of Aldimines Catalyzed by a Rhodium–Diene Complex. Org Lett 2014; 16:1016-9. [DOI: 10.1021/ol5000154] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhe Cui
- College
of Life Sciences, Northwest University, Xi’an, Shaanxi 710069, P. R. China
- CAS Key
Laboratory of Synthetic Chemistry of Natural Substances, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
| | - Ya-Jing Chen
- CAS Key
Laboratory of Synthetic Chemistry of Natural Substances, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
| | - Wen-Yun Gao
- College
of Life Sciences, Northwest University, Xi’an, Shaanxi 710069, P. R. China
| | - Chen-Guo Feng
- CAS Key
Laboratory of Synthetic Chemistry of Natural Substances, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
| | - Guo-Qiang Lin
- CAS Key
Laboratory of Synthetic Chemistry of Natural Substances, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
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30
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Verma P, Verma P, Sunoj RB. The mechanism of the NHC catalyzed aza-Morita–Baylis–Hillman reaction: insights into a new substrate-catalyzed bimolecular pathway. Org Biomol Chem 2014; 12:2176-9. [DOI: 10.1039/c3ob42273a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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31
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Abstract
Chiral phosphine, amine or metal catalyzed asymmetric aza-MBH reactions of various imines with different Michael acceptors in recent decades have been discussed and the perspectives offered by these new developments have also been demonstrated.
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Affiliation(s)
- Fang-Le Hu
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032, P. R. China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032, P. R. China
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32
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Matsunaga S, Shibasaki M. Recent advances in cooperative bimetallic asymmetric catalysis: dinuclear Schiff base complexes. Chem Commun (Camb) 2014; 50:1044-57. [DOI: 10.1039/c3cc47587e] [Citation(s) in RCA: 207] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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33
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Liu W, Zhao G. DABCO catalyzed cross-Rauhut-Currier/transesterification reactions of activated alkenes with phenyl acrylates: scope and mechanistic insight. Org Biomol Chem 2013; 12:832-5. [PMID: 24326624 DOI: 10.1039/c3ob41763h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DABCO catalyzed the cross-Rauhut-Currier/transesterification reaction of α-cyano-α,β-unsaturated ketones and aryl acrylates was discovered. The reaction rate law was determined by an integral method under pseudo-first-order reaction conditions, which assisted in proposing the mechanism of cross-Rauhut-Currier reaction promoted by Brønsted acid and establishing the rate-determining step.
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Affiliation(s)
- Wen Liu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
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34
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Takechi S, Kumagai N, Shibasaki M. Direct catalytic asymmetric Mannich-type reaction of α-sulfanyl lactones. Org Lett 2013; 15:2632-5. [PMID: 23668476 DOI: 10.1021/ol4008734] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Catalytic asymmetric Mannich-type reactions of α-sulfanyl lactones to aldimines were promoted by a chiral Ag complex/DBU binary catalyst. The reaction proceeded in a syn-selective manner in high enantioselectivity. Alkylative activation of the sulfide of the Mannich adduct allowed for the formation of trisubstituted aziridines.
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Affiliation(s)
- Sho Takechi
- Institute of Microbial Chemistry (BIKAKEN), Tokyo, 3-14-23 Kamiosaki, Tokyo 141-0021, Japan
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35
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Wei Y, Shi M. Recent advances in organocatalytic asymmetric Morita-Baylis-Hillman/aza-Morita-Baylis-Hillman reactions. Chem Rev 2013; 113:6659-90. [PMID: 23679920 DOI: 10.1021/cr300192h] [Citation(s) in RCA: 572] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yin Wei
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
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36
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Lindner C, Liu Y, Karaghiosoff K, Maryasin B, Zipse H. The aza-Morita-Baylis-Hillman reaction: a mechanistic and kinetic study. Chemistry 2013; 19:6429-34. [PMID: 23526632 DOI: 10.1002/chem.201204006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Revised: 02/10/2013] [Indexed: 11/09/2022]
Abstract
The aza-Morita-Baylis-Hillman (aza-MBH) reaction has been studied in a variety of solvents, a selection of imine substrates and with various combinations of PPh3 and para-nitrophenol as the catalyst system. The measured kinetic data indicates that the effects of solvent and protic co-catalyst are strongly interdependent. These results are most easily reconciled with a mechanistic model involving the reversible protonation of zwitterionic intermediates in the catalytic cycle, which is also supported by (31)P NMR spectroscopy and quantum chemical studies.
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Affiliation(s)
- Christoph Lindner
- Department of Chemistry, LMU Munich, Butenandtstrasse 5-13, 81377 München, Germany
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37
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Masusai C, Soorukram D, Kuhakarn C, Tuchinda P, Pakawatchai C, Reutrakul V, Pohmakotr M. The MoritaBaylisHillmanReaction of Chiral Highly Oxygenated Cyclopent-2-enones. Helv Chim Acta 2012. [DOI: 10.1002/hlca.201200421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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38
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Hyodo K, Nakamura S, Shibata N. Enantioselective Aza-Morita-Baylis-Hillman Reactions of Acrylonitrile Catalyzed by Palladium(II) Pincer Complexes havingC2-Symmetric Chiral Bis(imidazoline) Ligands. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201204891] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Hyodo K, Nakamura S, Shibata N. Enantioselective Aza-Morita-Baylis-Hillman Reactions of Acrylonitrile Catalyzed by Palladium(II) Pincer Complexes havingC2-Symmetric Chiral Bis(imidazoline) Ligands. Angew Chem Int Ed Engl 2012; 51:10337-41. [DOI: 10.1002/anie.201204891] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Indexed: 12/12/2022]
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40
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Catalytic Asymmetric [4+2] Annulation Initiated by an Aza-Rauhut-Currier Reaction: Facile Entry to Highly Functionalized Tetrahydropyridines. Angew Chem Int Ed Engl 2012; 51:7825-9. [DOI: 10.1002/anie.201203316] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Indexed: 11/07/2022]
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41
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Shi Z, Yu P, Loh TP, Zhong G. Catalytic Asymmetric [4+2] Annulation Initiated by an Aza-Rauhut-Currier Reaction: Facile Entry to Highly Functionalized Tetrahydropyridines. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203316] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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42
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Shi Z, Tong Q, Leong WWY, Zhong G. [4+2] Annulation of Vinyl Ketones Initiated by a Phosphine-Catalyzed Aza-Rauhut-Currier Reaction: A Practical Access to Densely Functionalized Tetrahydropyridines. Chemistry 2012; 18:9802-6. [DOI: 10.1002/chem.201201318] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Indexed: 11/10/2022]
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43
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Kim SH, Kim SH, Lim CH, Kim JN. A Practical Synthesis of Morita-Baylis-Hillman Adducts of Aryl Vinyl Ketones Catalyzed by a Proton Donor. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.6.2023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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44
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Luo Y, Carnell AJ, Lam HW. Enantioselective Rhodium-Catalyzed Addition of Potassium Alkenyltrifluoroborates to Cyclic Imines. Angew Chem Int Ed Engl 2012; 51:6762-6. [DOI: 10.1002/anie.201202136] [Citation(s) in RCA: 129] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2012] [Indexed: 11/05/2022]
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45
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Luo Y, Carnell AJ, Lam HW. Enantioselective Rhodium-Catalyzed Addition of Potassium Alkenyltrifluoroborates to Cyclic Imines. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201202136] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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46
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Fernández de la Pradilla R, Colomer I, Viso A. Sulfinyl-Mediated Stereoselective Overman Rearrangements and Diels–Alder Cycloadditions. Org Lett 2012; 14:3068-71. [DOI: 10.1021/ol301139a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
| | - Ignacio Colomer
- Instituto de Química Orgánica General, IQOG-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Alma Viso
- Instituto de Química Orgánica General, IQOG-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
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47
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Lindner C, Tandon R, Liu Y, Maryasin B, Zipse H. The aza-Morita-Baylis-Hillman reaction of electronically and sterically deactivated substrates. Org Biomol Chem 2012; 10:3210-8. [PMID: 22407401 DOI: 10.1039/c2ob07058h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The aza-Morita-Baylis-Hillman (azaMBH) reaction has been studied for electronically and sterically deactivated Michael acceptors. It is found that electronically deactivated systems can be converted with electron-rich phosphanes and pyridines as catalysts equally well. For sterically deactivated systems clearly better catalytic turnover can be achieved with pyridine catalysts. This is in accordance with the calculated affinities of the catalysts towards different Michael-acceptors.
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Affiliation(s)
- Christoph Lindner
- Department of Chemistry, LMU Muenchen, Butenandtstr. 5-13, 81377 Muenchen, Germany
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48
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Yang YL, Wei Y, Shi M. New multifunctional chiral phosphines and BINOL derivatives co-catalyzed enantioselective aza-Morita–Baylis–Hillman reaction of 5,5-disubstituted cyclopent-2-enone and N-sulfonated imines. Org Biomol Chem 2012; 10:7429-38. [DOI: 10.1039/c2ob25932j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Martelli G, Orena M, Rinaldi S. Synthesis of Enantiomerically Pure 3-Amino-2-methylenealkanoates (Aza-Morita-Baylis-Hillman Adducts) Mediated by Cinchona Alkaloids. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101244] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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50
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Matsunaga S, Yoshino T. Construction of contiguous tetrasubstituted chiral carbon stereocenters via direct catalytic asymmetric aldol and Mannich-type reactions. CHEM REC 2011; 11:260-8. [PMID: 21898777 DOI: 10.1002/tcr.201100020] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2011] [Indexed: 11/11/2022]
Abstract
Catalytic asymmetric synthesis of unnatural amino acids with vicinal tetrasubstituted chiral carbon stereocenters is described. In the first part, direct catalytic asymmetric aldol reaction of simple non-activated ketone electrophiles with α-substituted α-isothiocyanato ester donors was realized. A Mg/Schiff base catalyst promoted the aldol reaction, and α-amino-β-hydroxy esters were obtained in up to 98% ee and 98:2 d.r. In the second part, the Mg/Schiff base catalyst and a Sr/Schiff base catalyst were utilized for stereodivergent direct asymmetric Mannich-type reaction of ketimines. The Mg/Schiff base catalyst gave syn-α,β-diamino esters, while the Sr/Schiff base catalyst produced anti-α,β-diamino esters in good to high enantioselectivity, up to 97% ee.
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Affiliation(s)
- Shigeki Matsunaga
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Tokyo 113-0033, Japan.
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