1
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Lonardi G, Parolin R, Licini G, Orlandi M. Catalytic Asymmetric Conjugate Reduction. Angew Chem Int Ed Engl 2023; 62:e202216649. [PMID: 36757599 DOI: 10.1002/anie.202216649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/16/2023] [Accepted: 02/09/2023] [Indexed: 02/10/2023]
Abstract
Enantioselective reduction reactions are privileged transformations for the construction of trisubstituted stereogenic centers. While these include established synthetic strategies, such as asymmetric hydrogenation, methods based on the enantioselective addition of hydridic reagents to electrophilic prochiral substrates have also gained importance. In this context, the asymmetric conjugate reduction (ACR) of α,β-unsaturated compounds has become a convenient approach for the synthesis of chiral compounds with trisubstituted stereocenters in α-, β-, or γ-position to electron-withdrawing functional groups. Because such activating groups are diverse and amenable of further derivatizations, ACRs provide a general and powerful synthetic entry towards a variety of valuable chiral building blocks. This Review provides a comprehensive collection of catalytic ACR methods involving transition-metal, organic, and enzymatic catalysis since its first versions dating back to the late 1970s.
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Affiliation(s)
- Giovanni Lonardi
- Department of Chemical Sciences, University of Padova, Via Marzolo, 1, 35131, Padova, Italy
| | - Riccardo Parolin
- Department of Chemical Sciences, University of Padova, Via Marzolo, 1, 35131, Padova, Italy
| | - Giulia Licini
- Department of Chemical Sciences, University of Padova, Via Marzolo, 1, 35131, Padova, Italy
| | - Manuel Orlandi
- Department of Chemical Sciences, University of Padova, Via Marzolo, 1, 35131, Padova, Italy
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2
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Wu Q, Zhao YH, Lu-Lu C, Li HY, Li HX. Metal-free photocleavage of C(non-acyl)-S bond of thioesters for regioselective pyridylthioesterification of styrenes. Org Chem Front 2022. [DOI: 10.1039/d2qo00155a] [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
Transformation of thioesters via transition-metal-mediated C(acyl)−S bond cleavage is an emerging method to forge C-C and C-heteroatom bonds. Herein, we report the first activation of stronger C(non-acyl)–S bond of thioesters...
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3
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Shi Y, Wang J, Yin Q, Zhang X, Chiu P. Copper-Catalyzed Enantioselective 1,2-Reduction of Cycloalkenones. Org Lett 2021; 23:5658-5663. [PMID: 34255532 DOI: 10.1021/acs.orglett.1c01744] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We report an asymmetric 1,2-reduction of cyclic α,β-unsaturated ketones to access various enantiomerically enriched cyclic allylic alcohols under mild conditions, catalyzed by in situ generated copper hydride ligated with (R)-DTBM-C3*-TunePhos. α-Brominated cycloalkenones were reduced with excellent enantioselectivities of up to 98% ee, while substrates that were without α-substituents were reduced chemoselectively, with moderate enantioselectivities.
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Affiliation(s)
- Yongjie Shi
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China.,Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jingxin Wang
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qin Yin
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.,Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518000, China
| | - Xumu Zhang
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Pauline Chiu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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4
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Larson GL, Liberatore RJ. Organosilanes in Metal-Catalyzed, Enantioselective Reductions. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00073] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Gerald L. Larson
- Vice President, Research and Development, emeritus, Gelest, Inc., Morrisville, Pennsylvania 19067, United States
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5
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Gorbunova Y, Zakusilo DN, Boyarskaya IA, Vasilyev AV. Reactions of 3-arylpropenenitriles with arenes under superelectrophilic activation conditions: Hydroarylation of the carbon-carbon double bond followed by cyclization into 3-arylindanones. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131264] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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6
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Pan T, Shi P, Chen B, Zhou DG, Zeng YL, Chu WD, He L, Liu QZ, Fan CA. CuH-Catalyzed Asymmetric 1,6-Conjugate Reduction of p-Quinone Methides: Enantioselective Synthesis of Triarylmethanes and 1,1,2-Triarylethanes. Org Lett 2019; 21:6397-6402. [PMID: 31389704 DOI: 10.1021/acs.orglett.9b02308] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Ting Pan
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, No. 1, Shida Road, Nanchong 637002, P.R. China
| | - Pan Shi
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, No. 1, Shida Road, Nanchong 637002, P.R. China
| | - Bo Chen
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, No. 1, Shida Road, Nanchong 637002, P.R. China
| | - Da-Gang Zhou
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, No. 1, Shida Road, Nanchong 637002, P.R. China
| | - Ya-Li Zeng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, No. 1, Shida Road, Nanchong 637002, P.R. China
| | - Wen-Dao Chu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, No. 1, Shida Road, Nanchong 637002, P.R. China
| | - Long He
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, No. 1, Shida Road, Nanchong 637002, P.R. China
| | - Quan-Zhong Liu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, No. 1, Shida Road, Nanchong 637002, P.R. China
| | - Chun-An Fan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
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7
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Yadav M, Singh AS, Agrahari AK, Mishra N, Tiwari VK. Silicon Industry Waste Polymethylhydrosiloxane-Mediated Benzotriazole Ring Cleavage: A Practical and Green Synthesis of Diverse Benzothiazoles. ACS OMEGA 2019; 4:6681-6689. [PMID: 31459794 PMCID: PMC6648665 DOI: 10.1021/acsomega.9b00343] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 03/29/2019] [Indexed: 06/10/2023]
Abstract
A green modification has been introduced to the synthesis of benzothiazoles by using polymethylhydrosiloxane (PMHS) for successive steps of benzotriazole ring cleavage and cyclization, an approach which was previously developed in our lab by the use of n-Bu3SnH. The use of the silicone industry byproduct PMHS makes this protocol a cost-effective and nontoxic one and thus may be considered for the industrial importance.
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8
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Selmani A, Darses S. Access to chiral cyano-containing five-membered rings through enantioconvergent rhodium-catalyzed cascade cyclization of a diastereoisomeric E/Z mixture of 1,6-enynes. Org Chem Front 2019. [DOI: 10.1039/c9qo01264h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In contrast to the intermolecular rhodium-catalyzed asymmetric 1,4-addition of organometallic reagents to activated alkenes, the asymmetric arylative cyclization of a diastereoisomeric E/Z mixture of 1,6-enynes afforded only one major enantiomer.
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Affiliation(s)
- Aymane Selmani
- CNRS
- Institute of Chemistry for Life and Health Sciences (i-CLeHS)
- PSL Université Paris
- Chimie ParisTech
- Paris
| | - Sylvain Darses
- CNRS
- Institute of Chemistry for Life and Health Sciences (i-CLeHS)
- PSL Université Paris
- Chimie ParisTech
- Paris
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9
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Xue F, Zhu Y, Qi X. Chiral Sulfinyl-Based Olefin Ligands for Rhodium-Catalysed Asymmetric Conjugate Addition of Arylboronic Acids to Cyanoalkenes. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15287224792440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A rhodium/sulfinyl-based olefin ligand-catalysed asymmetric conjugate addition of arylboronic acids to cyanoalkenes without activation groups has been developed, where p-tolylsulfinyl-functionalised olefin ligands have been shown to be effective and with moderate enantioselectivities. This is the first example of applying chiral sulfinyl-based olefin ligands in the catalytic asymmetric addition to cyanoalkenes.
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Affiliation(s)
- Feng Xue
- Key Laboratory of Functional Organic Molecules of Xinxiang City, Henan Province, College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang Henan 453002, P.R. China
| | - Yong Zhu
- Key Laboratory of Functional Organic Molecules of Xinxiang City, Henan Province, College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang Henan 453002, P.R. China
| | - Xiaolei Qi
- Key Laboratory of Functional Organic Molecules of Xinxiang City, Henan Province, College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang Henan 453002, P.R. China
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10
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Kamble RB, Devalankar D, Suryavanshi G. Two stereocentered HKR of anti-β,β′-diphenylpropanoxirane and anti-3-phenylethyloxiranes catalysed by Co(iii)(salen)-OAc complex: enantioselective synthesis of (+)-sertraline and (+)-naproxen. NEW J CHEM 2018. [DOI: 10.1039/c8nj01616j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Two stereocentered HKR of anti-β,β′-diphenylmethyloxirane and anti-3-phenylethyloxiranes gives enantiopure anti-1,2-diols and oxiranes. This method is utilised for the synthesis of (+)-sertraline and (+)-naproxen.
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Affiliation(s)
- Rohit B. Kamble
- Chemical Engineering and Process Development Division
- National Chemical Laboratory
- Pune-411008
- India
- Academy of Scientific & Innovative Research
| | | | - Gurunath Suryavanshi
- Chemical Engineering and Process Development Division
- National Chemical Laboratory
- Pune-411008
- India
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11
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Yan Q, Kong D, Li M, Hou G, Zi G. Highly Efficient Rh-Catalyzed Asymmetric Hydrogenation of α,β-Unsaturated Nitriles. J Am Chem Soc 2015. [DOI: 10.1021/jacs.5b06418] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qiaozhi Yan
- College
of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Duanyang Kong
- College
of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Meina Li
- College
of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guohua Hou
- College
of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guofu Zi
- College
of Chemistry, Beijing Normal University, Beijing 100875, China
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12
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Parveen S, Hussain S, Qin X, Hao X, Zhu S, Rui M, Zhang S, Fu F, Ma B, Yu Q, Zhu C. Copper-catalyzed asymmetric synthesis and comparative aldose reductase inhibition activity of (+)/(-)-1,2-benzothiazine-1,1-dioxide acetic acid derivatives. J Org Chem 2014; 79:4963-72. [PMID: 24785266 DOI: 10.1021/jo500338c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A copper catalyst system for the asymmetric 1,4-hydrosilylation of the α,β-unsaturated carboxylate class was developed by which synthesis of (+)- and (-)-enantiomers of 1,2-benzothiazine-1,1-dioxide acetates has been achieved with a good yield and an excellent level of enantioselectivity. A comparative structure-activity relationship study yielded the following order of aldose reductase inhibition activity: (-)-enantiomers > racemic > (+)-enantiomers. Further, a molecular docking study suggested that the (-)-enantiomer had significant binding affinity and thus increased inhibition activity.
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Affiliation(s)
- Shagufta Parveen
- Department of Applied Chemistry, Beijing Institute of Technology , No. 5, Zhongguancun South Street, 100081 Beijing, China
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13
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Deane KJ, Summers RL, Lehane AM, Martin RE, Barrow RA. Chlorpheniramine Analogues Reverse Chloroquine Resistance in Plasmodium falciparum by Inhibiting PfCRT. ACS Med Chem Lett 2014; 5:576-81. [PMID: 24900883 DOI: 10.1021/ml5000228] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Accepted: 03/03/2014] [Indexed: 12/17/2022] Open
Abstract
The emergence and spread of malaria parasites that are resistant to chloroquine (CQ) has been a disaster for world health. The antihistamine chlorpheniramine (CP) partially resensitizes CQ-resistant (CQR) parasites to CQ but possesses little intrinsic antiplasmodial activity. Mutations in the parasite's CQ resistance transporter (PfCRT) confer resistance to CQ by enabling the protein to transport the drug away from its site of action, and it is thought that resistance-reversers such as CP exert their effect by blocking this CQ transport activity. Here, a series of new structural analogues and homologues of CP have been synthesized. We show that these compounds (along with other in vitro CQ resistance-reversers) inhibit the transport of CQ via a resistance-conferring form of PfCRT expressed in Xenopus laevis oocytes. Furthermore, the level of PfCRT-inhibition was found to correlate well with both the restoration of CQ accumulation and the level of CQ resensitization in CQR parasites.
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Affiliation(s)
- Karen J. Deane
- Research
School of Chemistry and ‡Research School of Biology, Australian National University, Canberra, ACT 0200, Australia
| | - Robert L. Summers
- Research
School of Chemistry and ‡Research School of Biology, Australian National University, Canberra, ACT 0200, Australia
| | - Adele M. Lehane
- Research
School of Chemistry and ‡Research School of Biology, Australian National University, Canberra, ACT 0200, Australia
| | - Rowena E. Martin
- Research
School of Chemistry and ‡Research School of Biology, Australian National University, Canberra, ACT 0200, Australia
| | - Russell A. Barrow
- Research
School of Chemistry and ‡Research School of Biology, Australian National University, Canberra, ACT 0200, Australia
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14
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15
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Best D, Lam HW. C═N-Containing Azaarenes as Activating Groups in Enantioselective Catalysis. J Org Chem 2013; 79:831-45. [DOI: 10.1021/jo402414k] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Daniel Best
- EaStCHEM, School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings,
West Mains Road, Edinburgh EH9 3JJ, United Kingdom
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Hon Wai Lam
- EaStCHEM, School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings,
West Mains Road, Edinburgh EH9 3JJ, United Kingdom
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
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16
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Wang H, Li L, Bai XF, Shang JY, Yang KF, Xu LW. Efficient Palladium-Catalyzed CO Hydrogenolysis of Benzylic Alcohols and Aromatic Ketones with Polymethylhydrosiloxane. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201200832] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Itoh K, Tsuruta A, Ito JI, Yamamoto Y, Nishiyama H. Enantioselective synthesis of optically active 3,3-diarylpropanoates by conjugate hydrosilylation with chiral Rh-bis(oxazolinyl)phenyl catalysts. J Org Chem 2012; 77:10914-9. [PMID: 23140754 DOI: 10.1021/jo302357b] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Conjugate hydrosilylation of 3,3-diarylacrylate derivatives catalyzed by chiral rhodium-bis(oxazolinyl)phenyl complexes (1 mol %) at 60 °C for 2 h was investigated to prepare optically active 3,3-diarylpropanoate derivatives in high yields up to 99% yield and high enantioselectivities up to 99%.
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Affiliation(s)
- Kengou Itoh
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Chikusa, Nagoya 464-8603 Japan
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18
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Ding J, Lee JCH, Hall DG. Stereoselective Preparation of β-Aryl-β-Boronyl Enoates and Their Copper-Catalyzed Enantioselective Conjugate Reduction. Org Lett 2012; 14:4462-5. [DOI: 10.1021/ol301958x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jinyue Ding
- Department of Chemistry, 4-010 Centennial Centre for Interdisciplinary Science, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Jack Chang Hung Lee
- Department of Chemistry, 4-010 Centennial Centre for Interdisciplinary Science, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Dennis G. Hall
- Department of Chemistry, 4-010 Centennial Centre for Interdisciplinary Science, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
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19
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Li Y, Das S, Zhou S, Junge K, Beller M. General and selective copper-catalyzed reduction of tertiary and secondary phosphine oxides: convenient synthesis of phosphines. J Am Chem Soc 2012; 134:9727-32. [PMID: 22480270 DOI: 10.1021/ja301764m] [Citation(s) in RCA: 127] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Novel catalytic reductions of tertiary and secondary phosphine oxides to phosphines have been developed. Using tetramethyldisiloxane (TMDS) as a mild reducing agent in the presence of copper complexes, PO bonds are selectively reduced in the presence of other reducible functional groups (FGs) such as ketones, esters, and olefins. Based on this transformation, an efficient one pot reduction/phosphination domino sequence allows for the synthesis of a variety of functionalized aromatic and aliphatic phosphines in good yields.
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Affiliation(s)
- Yuehui Li
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert Einstein Str. 29a, 18059 Rostock, Germany
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20
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Preparation of chiral secondary boronic esters via copper-catalyzed enantioselective conjugate reduction of β-boronyl-β-alkyl α,β-unsaturated esters. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.07.088] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Chiral dihydrobenzo[1,4]oxazines as catalysts for the asymmetric transfer-hydrogenation of α,β-unsaturated aldehydes. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.10.051] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Li N, Ou J, Miesch M, Chiu P. Conjugate reduction and reductive aldol cyclization of α,β-unsaturated thioesters catalyzed by (BDP)CuH. Org Biomol Chem 2011; 9:6143-7. [DOI: 10.1039/c1ob05352c] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Hou CJ, Guo WL, Hu XP, Deng J, Zheng Z. Chiral ferrocenyl phosphine-phosphoramidite ligands for Cu-catalyzed asymmetric conjugate reduction of α,β-unsaturated esters. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.01.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Tomioka T, Takahashi Y, Vaughan TG, Yanase T. A Facile, One-Pot Synthesis of β-Substituted (Z)-Acrylonitriles Utilizing an α-Diaminoboryl Carbanion. Org Lett 2010; 12:2171-3. [DOI: 10.1021/ol100534s] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takashi Tomioka
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677
| | - Yusuke Takahashi
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677
| | - Trey G. Vaughan
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677
| | - Takayoshi Yanase
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677
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25
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Duan ZC, Hu XP, Wang DY, Yu SB, Zheng Z. Cu-catalyzed asymmetric conjugate reduction of β-substituted α,β-unsaturated phosphonates: an efficient synthesis of optically active β-stereogenic alkylphosphonates. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.09.094] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Yoo K, Kim H, Yun J. Asymmetric Synthesis of 1,1-Diarylalkyl Units by a Copper Hydride Catalyzed Reduction: Differentiation Between Two Similar Aryl Substituents. Chemistry 2009; 15:11134-8. [DOI: 10.1002/chem.200901262] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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27
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Noh D, Chea H, Ju J, Yun J. Highly Regio- and Enantioselective Copper-Catalyzed Hydroboration of Styrenes. Angew Chem Int Ed Engl 2009; 48:6062-4. [DOI: 10.1002/anie.200902015] [Citation(s) in RCA: 254] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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28
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Noh D, Chea H, Ju J, Yun J. Highly Regio- and Enantioselective Copper-Catalyzed Hydroboration of Styrenes. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200902015] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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29
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Rupnicki L, Saxena A, Lam HW. Aromatic Heterocycles as Activating Groups for Asymmetric Conjugate Addition Reactions. Enantioselective Copper-Catalyzed Reduction of 2-Alkenylheteroarenes. J Am Chem Soc 2009; 131:10386-7. [PMID: 19722617 DOI: 10.1021/ja904365h] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Leszek Rupnicki
- School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Aakarsh Saxena
- School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Hon Wai Lam
- School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
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30
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Yamamoto Y, Asatani T, Kirai N. Copper-Catalyzed Stereoselective Hydroarylation of 3-Aryl-2- propynenitriles with Arylboronic Acids. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900067] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Yoo K, Kim H, Yun J. Enantioselective Synthesis of (R)-Tolterodine via CuH-Catalyzed Asymmetric Conjugate Reduction. J Org Chem 2009; 74:4232-5. [DOI: 10.1021/jo900530s] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kihyun Yoo
- Department of Chemistry and Institute of Basic Science, Sungkyunkwan University, Suwon 440-746, Korea
| | - Hyohyun Kim
- Department of Chemistry and Institute of Basic Science, Sungkyunkwan University, Suwon 440-746, Korea
| | - Jaesook Yun
- Department of Chemistry and Institute of Basic Science, Sungkyunkwan University, Suwon 440-746, Korea
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Affiliation(s)
- Carl Deutsch
- Organic Chemistry II, Dortmund University of Technology, Otto-Hahn-Strasse 6, D-44227 Dortmund, Germany
| | - Norbert Krause
- Organic Chemistry II, Dortmund University of Technology, Otto-Hahn-Strasse 6, D-44227 Dortmund, Germany
| | - Bruce H. Lipshutz
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106
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Deng J, Hu XP, Huang JD, Yu SB, Wang DY, Duan ZC, Zheng Z. Enantioselective Synthesis of β-Aryl-γ-amino Acid Derivatives via Cu-Catalyzed Asymmetric 1,4-Reductions of γ-Phthalimido-Substituted α,β-Unsaturated Carboxylic Acid Esters. J Org Chem 2008; 73:6022-4. [DOI: 10.1021/jo800794p] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jun Deng
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Xiang-Ping Hu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Jia-Di Huang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Sai-Bo Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Dao-Yong Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Zheng-Chao Duan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Zhuo Zheng
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
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Monguchi D, Beemelmanns C, Hashizume D, Hamashima Y, Sodeoka M. Catalytic asymmetric conjugate reduction with ethanol: A more reactive system Pd(II)–iPr-DUPHOS complex with molecular sieves 4A. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2007.10.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Díez-González S, Nolan SP. Copper, silver, and gold complexes in hydrosilylation reactions. Acc Chem Res 2008; 41:349-58. [PMID: 18281951 DOI: 10.1021/ar7001655] [Citation(s) in RCA: 321] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reduction of diverse functional groups is an essential protocol in organic chemistry. Transition-metal catalysis has been successfully applied to the reduction of olefins, alkynes, and many carbonyl compounds via hydrogenation or hydrosilylation; the latter presenting several advantages over hydrogenation. Notably, hydrosilylation generally occurs under mild reaction conditions, and consequently over-reduced products are rarely detected. Moreover, the great majority of hydrosilanes employed in this reaction are easily handled, inexpensive, or both. A large number of multiple bonds can be involved in this context, and the hydrosilylation reaction can be regarded as a useful method for the synthesis of silicon-containing organic molecules or a convenient way of reducing organic compounds. Furthermore, the silyl group can also be retained as a protecting group, a strategy that can be of great usefulness in organic synthesis. Since the first Wilkinson's catalyst-mediated hydrosilylation of ketones in 1972, metals such as rhodium and iridium have attracted most of the attention in this area. A wide array of catalytic systems for hydrosilylation reactions is nowadays available, which has allowed for a great expansion of the synthetic scope of this transformation. After having been overlooked in the early years, group 11 metals (Cu, Ag, and Au), especially copper, have emerged as appealing alternatives for hydrosilylation. The use of a stabilized form of copper hydride, the hexameric [(Ph3P)CuH]6, by Stryker represented a breakthrough in copper-catalyzed reduction reactions. Nowadays, several copper-based catalytic systems compare well with a variety of reported rhodium-based catalysts, which generally suffer from the high cost of the catalyst. Tertiary phosphine ligands are the most widely used in these transformations. However, other families such as N-heterocyclic carbenes (NHCs) have shown promising activities. Compared with copper, little attention has been paid to silver- or gold-based catalysts. Silver salts have been considered inert towards hydrosilylation, and they are often employed as innocent anion exchange reagents for the in situ generation of cationic transition metal catalysts. Despite the rare reports available, they have already shown interesting reactivity profiles, for example, in the chemoselective reduction of aldehydes in the presence of ketones. Furthermore, 1,2-hydride delivery is favored over 1,4-reductions for alpha,beta-unsaturated carbonyl compounds, in contrast with most copper-based systems.
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Affiliation(s)
- Silvia Díez-González
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Steven P. Nolan
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
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Lee JE, Yun J. Catalytic Asymmetric Boration of Acyclic α,β-Unsaturated Esters and Nitriles. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200703699] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Marsh B, Carbery DR. Synthetic methods : Part (ii) Oxidation and reduction methods. ACTA ACUST UNITED AC 2008. [DOI: 10.1039/b716595c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Lee JE, Yun J. Catalytic Asymmetric Boration of Acyclic α,β-Unsaturated Esters and Nitriles. Angew Chem Int Ed Engl 2008; 47:145-7. [DOI: 10.1002/anie.200703699] [Citation(s) in RCA: 330] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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