1
|
Zhang CY, Cao K, Yang HB, Ding LF, Yang J. Cu(OTf) 2/NBS-Mediated Tandem Reaction of 1-Cinnamyl Alcohol- o-Carboranes via Ring Opening of Oxetane with Arenes: An Alternative Approach for the Synthesis of C-Alkenyl- o-Carboranes. J Org Chem 2022; 87:10928-10936. [PMID: 35921205 DOI: 10.1021/acs.joc.2c01217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The Cu(OTf)2/NBS-mediated tandem reaction of 1-cinnamyl alcohol-o-carboranes for the synthesis of C-alkenyl-o-carboranes has been developed. Mechanism studies demonstrated that the Cu(OTf)2-promoted ring opening of oxetane with electron-rich arenes as soft nucleophiles was involved and was the key step for the transformation. This work provided an alternative strategy for the synthesis of C-alkenyl-o-carboranes, which has an important reference for the synthesis of o-carborane derivatives with diversity.
Collapse
Affiliation(s)
- Cai-Yan Zhang
- State Key Laboratory of Environment-Friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan 621010, P. R. China
| | - Ke Cao
- State Key Laboratory of Environment-Friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan 621010, P. R. China
| | - Han-Bo Yang
- State Key Laboratory of Environment-Friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan 621010, P. R. China
| | - Li-Fang Ding
- State Key Laboratory of Environment-Friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan 621010, P. R. China
| | - Junxiao Yang
- State Key Laboratory of Environment-Friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan 621010, P. R. China
| |
Collapse
|
2
|
Tang L, Zang Y, Guo W, Han Z, Huang H, Sun J. Reductive Opening of Oxetanes Catalyzed by Frustrated Lewis Pairs: Unexpected Aryl Migration via Neighboring Group Participation. Org Lett 2022; 24:3259-3264. [PMID: 35467358 DOI: 10.1021/acs.orglett.2c01088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
B(C6F5)3 was found to catalyze an unusual double reduction of oxetanes by hydrosilane with aryl migration via neighboring group participation. Control experiments suggested that the phenonium ion serves as the key intermediate. Minor modification of this protocol also led to simple hydrosilylative opening of oxetanes.
Collapse
Affiliation(s)
- Luning Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Yu Zang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Wengang Guo
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Zhengyu Han
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jianwei Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.,Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR 999077, China.,Shenzhen Research Institute, HKUST, No. 9 Yuexing First Road, Shenzhen 518057, China
| |
Collapse
|
3
|
Zhang R, Sun M, Yan Q, Lin X, Li X, Fang X, Sung HHY, Williams ID, Sun J. Asymmetric Synthesis of Pyrrolidines via Oxetane Desymmetrization. Org Lett 2022; 24:2359-2364. [PMID: 35322664 DOI: 10.1021/acs.orglett.2c00564] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Asymmetric synthesis of chiral pyrrolidines bearing an all-carbon quaternary stereocenter in the 3-position remains challenging. Herein we report two efficient protocols by means of oxetane desymmetrization, featuring the use of a readily available tert-butylsulfinamide chiral auxiliary and a catalytic system with chiral phosphoric acid as the source of chirality, respectively.
Collapse
Affiliation(s)
- Renwei Zhang
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China.,Shenzhen Research Institute, HKUST, No. 9 Yuexing 1st Road, Shenzhen 518057, China.,Shenzhen Bay Laboratory, Shenzhen 518107, China
| | - Meng Sun
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Qiaolin Yan
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Xingbang Lin
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Xin Li
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Xin Fang
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Herman H Y Sung
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Ian D Williams
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Jianwei Sun
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China.,Shenzhen Research Institute, HKUST, No. 9 Yuexing 1st Road, Shenzhen 518057, China
| |
Collapse
|
4
|
Zhang T, Zhuang H, Tang L, Han Z, Guo W, Huang H, Sun J. Catalytic Enantioselective Synthesis of 2,3-Dihydrobenzo[ b]oxepines via Asymmetric Oxetane Opening by Internal Carbon Nucleophiles. Org Lett 2021; 24:207-212. [PMID: 34914391 DOI: 10.1021/acs.orglett.1c03852] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An intramolecular C-C formation process based on catalytic asymmetric oxetane opening by carbon nucleophiles has been developed, which provides rapid access to a range of valuable enantioenriched 2,3-dihydrobenzo[b]oxepines. With the combination of Sc(OTf)3 and a Box ligand, good chemical efficiency and enantioselectivity were achieved under mild conditions. The products are also useful precursors to other valuable structures, such as the bicyclo[3.2.2]nonane derivatives.
Collapse
Affiliation(s)
- Tianyu Zhang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Han Zhuang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Luning Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Zhengyu Han
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Wengang Guo
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jianwei Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 999077, China
| |
Collapse
|
5
|
Sandvoß A, Wiest JM. Recent Advances in Enantioselective Desymmetrizations of Prochiral Oxetanes. Chemistry 2021; 27:5871-5879. [PMID: 33274788 PMCID: PMC8049043 DOI: 10.1002/chem.202004923] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Indexed: 12/23/2022]
Abstract
Strain relief of oxetanes offers a plethora of opportunities for the synthesis of chiral alcohols and ethers. In this context, enantioselective desymmetrization has been identified as a powerful tool to construct molecular complexity and this has led to the development of elegant strategies on the basis of transition metal, Lewis acid, and Brønsted acid catalysis. This review highlights recent examples that harness the inherent reactivity of prochiral oxetanes and offers an outlook on the immense possibilities for synthetic application.
Collapse
Affiliation(s)
- Alexander Sandvoß
- Department ChemieJohannes Gutenberg Universität MainzDuesbergweg 10–1455128MainzGermany
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 3648149MünsterGermany
| | - Johannes M. Wiest
- Department ChemieJohannes Gutenberg Universität MainzDuesbergweg 10–1455128MainzGermany
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 3648149MünsterGermany
| |
Collapse
|
6
|
Huang H, Zhang T, Sun J. Mild C–C Bond Formation via Lewis Acid Catalyzed Oxetane Ring Opening with Soft Carbon Nucleophiles. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology School of Petrochemical Engineering Changzhou University Changzhou China
| | - Tianyu Zhang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology School of Petrochemical Engineering Changzhou University Changzhou China
| | - Jianwei Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology School of Petrochemical Engineering Changzhou University Changzhou China
- Department of Chemistry The Hong Kong University of Science and Technology, Clear Water Bay Kowloon, Hong Kong SAR China
| |
Collapse
|
7
|
Huang H, Zhang T, Sun J. Mild C-C Bond Formation via Lewis Acid Catalyzed Oxetane Ring Opening with Soft Carbon Nucleophiles. Angew Chem Int Ed Engl 2021; 60:2668-2673. [PMID: 33459485 DOI: 10.1002/anie.202013062] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Indexed: 11/09/2022]
Abstract
Mild oxetane opening by soft carbon nucleophiles has been developed for efficient C-C bond formation. In the presence of LiNTf2 or TBSNTf2 as catalyst, silyl ketene acetals were found to be effective nucleophiles to generate a wide range of highly oxygenated molecules, which are key substructure in natural products like polyketides. Furthermore, intramolecular oxetane opening by a styrene-based carbon nucleophile via a Prins-type process was also achieved with Sc(OTf)3 as catalyst, leading to efficient formation of the useful 2,3-dihydrobenzo[b]oxepine skeleton.
Collapse
Affiliation(s)
- Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, China
| | - Tianyu Zhang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, China
| | - Jianwei Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| |
Collapse
|
8
|
Kotani S, Nakajima M, Tashima Y, Tanaka H, Aoki S. Chiral Phosphine Oxide-Catalyzed Enantioselective Ring Opening of Oxetanes. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)57] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
9
|
Ren LQ, He YS, Yang YT, Li ZF, Xue ZY, Li QH, Liu TL. Chlorocyclization/cycloreversion of allylic alcohols to vinyl chlorides. Org Chem Front 2021. [DOI: 10.1039/d1qo01218e] [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
Unprecedented chlorination of allylic alcohols: a simple mix-and-go procedure for the cyclization/cycloreversion of secondary and tertiary allylic alcohols with chloronium ions under mild conditions and practical access to remote carbonyl vinyl chlorides.
Collapse
Affiliation(s)
- Li-Qing Ren
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Yu-Shuai He
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Yu-Ting Yang
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Zhao-Feng Li
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Zhi-Yong Xue
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Qing-Hua Li
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Tang-Lin Liu
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| |
Collapse
|
10
|
Wang G, Huang H, Guo W, Qian C, Sun J. Unusual Skeletal Reorganization of Oxetanes for the Synthesis of 1,2-Dihydroquinolines. Angew Chem Int Ed Engl 2020; 59:11245-11249. [PMID: 32219976 DOI: 10.1002/anie.201916727] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 03/08/2020] [Indexed: 01/29/2023]
Abstract
Skeletal reorganization is a type of fascinating transformations owing to their intriguing mechanisms and utility in complex molecule synthesis. However, only a limited amount of examples are known for most functional groups. Herein, we describe such an unusual process of oxetanes. In the presence of In(OTf)3 as catalyst, oxetane-tethered anilines reacted unexpectedly to form 1,2-dihydroquinolines. This process not only provides expedient access to dihydroquinolines, but also represents a new reaction of oxetane. Mechanistically, it is believed that the reaction proceeds through initial nitrogen attack rather than arene attack followed by a series of bond cleavage and formation events. Control experiments provided important insights into the mechanism.
Collapse
Affiliation(s)
- Guannan Wang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
| | - Wengang Guo
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Chenxiao Qian
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Jianwei Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| |
Collapse
|
11
|
Wang G, Huang H, Guo W, Qian C, Sun J. Unusual Skeletal Reorganization of Oxetanes for the Synthesis of 1,2‐Dihydroquinolines. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Guannan Wang
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology School of Petrochemical Engineering Changzhou University Changzhou 213164 China
| | - Wengang Guo
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| | - Chenxiao Qian
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| | - Jianwei Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology School of Petrochemical Engineering Changzhou University Changzhou 213164 China
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| |
Collapse
|
12
|
Strassfeld DA, Wickens ZK, Picazo E, Jacobsen EN. Highly Enantioselective, Hydrogen-Bond-Donor Catalyzed Additions to Oxetanes. J Am Chem Soc 2020; 142:9175-9180. [PMID: 32364378 PMCID: PMC7293824 DOI: 10.1021/jacs.0c03991] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A precisely designed chiral squaramide derivative is shown to promote the highly enantioselective addition of trimethylsilyl bromide (TMSBr) to a broad variety of 3-substituted and 3,3-disubstituted oxetanes. The reaction provides direct and general access to synthetically valuable 1,3-bromohydrin building blocks from easily accessed achiral precursors. The products are readily elaborated both by nucleophilic substitution and through transition-metal-catalyzed cross-coupling reactions. The enantioselective catalytic oxetane ring opening was employed as part of a three-step, gram-scale synthesis of pretomanid, a recently approved medication for the treatment of multidrug-resistant tuberculosis. Heavy-atom kinetic isotope effect (KIE) studies are consistent with enantiodetermining delivery of bromide from the H-bond-donor (HBD) catalyst to the activated oxetane. While the nucleophilicity of the bromide ion is expected to be attenuated by association to the HBD, overall rate acceleration is achieved by enhancement of Lewis acidity of the TMSBr reagent through anion abstraction.
Collapse
Affiliation(s)
| | | | - Elias Picazo
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Eric N. Jacobsen
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| |
Collapse
|
13
|
Zou X, Sun G, Huang H, Wang J, Yang W, Sun J. Catalytic Enantioselective Synthesis of 1,4-Benzodioxepines. Org Lett 2020; 22:249-252. [PMID: 31840516 DOI: 10.1021/acs.orglett.9b04244] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
An efficient organocatalytic enantioselective synthesis of chiral 1,4-benzodioxepines is described. By proper incorporation of an intramolecular oxetane desymmetrization process, a range of benzylic alcohols bearing an internal oxetane reacted in the presence of a suitable chiral phosphoric acid catalyst to form chiral 1,4-benzodioxepines with high enantioselectivity. This process provides a new catalytic asymmetric example of direct synthesis of seven-membered heterocycles with good stereocontrol.
Collapse
Affiliation(s)
- Xi Zou
- College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P.R. China
| | - Guangwu Sun
- College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P.R. China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology , School of Petrochemical Engineering, Changzhou University , Changzhou 213164 , P.R. China
| | - Jinping Wang
- College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P.R. China
| | - Wen Yang
- College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P.R. China
| | - Jianwei Sun
- Department of Chemistry and Shenzhen Research Institute , The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon , Hong Kong SAR, P.R. China
| |
Collapse
|
14
|
Zhang R, Guo W, Duan M, Houk KN, Sun J. Asymmetric Desymmetrization of Oxetanes for the Synthesis of Chiral Tetrahydrothiophenes and Tetrahydroselenophenes. Angew Chem Int Ed Engl 2019; 58:18055-18060. [DOI: 10.1002/anie.201910917] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Renwei Zhang
- Department of Chemistry and Shenzhen Research InstituteThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| | - Wengang Guo
- Department of Chemistry and Shenzhen Research InstituteThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| | - Meng Duan
- Department of Chemistry and BiochemistryUniversity of California Los Angeles California 90095 USA
| | - K. N. Houk
- Department of Chemistry and BiochemistryUniversity of California Los Angeles California 90095 USA
| | - Jianwei Sun
- Department of Chemistry and Shenzhen Research InstituteThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| |
Collapse
|
15
|
Aoyagi N, Endo T. Synthesis and cationic ring‐opening polymerization of oxetane monomer containing five‐membered cyclic carbonate moiety via highly chemoselective addition of CO
2. ACTA ACUST UNITED AC 2019. [DOI: 10.1002/pola.29541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Naoto Aoyagi
- Molecular Engineering Institute Kindai University, 11‐6 Kayanomori, Iizuka Fukuoka 820‐8555 Japan
| | - Takeshi Endo
- Molecular Engineering Institute Kindai University, 11‐6 Kayanomori, Iizuka Fukuoka 820‐8555 Japan
| |
Collapse
|
16
|
Zhang R, Guo W, Duan M, Houk KN, Sun J. Asymmetric Desymmetrization of Oxetanes for the Synthesis of Chiral Tetrahydrothiophenes and Tetrahydroselenophenes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910917] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Renwei Zhang
- Department of Chemistry and Shenzhen Research InstituteThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| | - Wengang Guo
- Department of Chemistry and Shenzhen Research InstituteThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| | - Meng Duan
- Department of Chemistry and BiochemistryUniversity of California Los Angeles California 90095 USA
| | - K. N. Houk
- Department of Chemistry and BiochemistryUniversity of California Los Angeles California 90095 USA
| | - Jianwei Sun
- Department of Chemistry and Shenzhen Research InstituteThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| |
Collapse
|
17
|
Laurita T, Chiummiento L, Funicello M, D'Orsi R, Sallemi D, Tofani D, Lupattelli P. Regio- and Diastereoselective Organo-Zinc-Promoted Arylation oftrans-2,3-Diaryloxiranes by Arylboronic Acids: Stereoselective Access totrans-2,3-Diphenyl-2,3-dihydrobenzofuran. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900588] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Teresa Laurita
- Department of Sciences; University of Basilicata; via dell'ateneo lucano 10 85100 Potenza Italy
| | - Lucia Chiummiento
- Department of Sciences; University of Basilicata; via dell'ateneo lucano 10 85100 Potenza Italy
| | - Maria Funicello
- Department of Sciences; University of Basilicata; via dell'ateneo lucano 10 85100 Potenza Italy
| | - Rosarita D'Orsi
- Department of Sciences; University of Basilicata; via dell'ateneo lucano 10 85100 Potenza Italy
| | - Deborah Sallemi
- Department of Sciences; University of Basilicata; via dell'ateneo lucano 10 85100 Potenza Italy
| | - Daniela Tofani
- Department of Sciences; University of Roma3; via della vasca navale 79 00146 Roma Italy
| | - Paolo Lupattelli
- Department of Sciences; University of Basilicata; via dell'ateneo lucano 10 85100 Potenza Italy
| |
Collapse
|
18
|
Eno MS, Lu A, Morken JP. Nickel-Catalyzed Asymmetric Kumada Cross-Coupling of Symmetric Cyclic Sulfates. J Am Chem Soc 2016; 138:7824-7. [PMID: 27276235 DOI: 10.1021/jacs.6b03384] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Nickel-catalyzed enantioselective cross-couplings between symmetric cyclic sulfates and aromatic Grignard reagents are described. These reactions are effective with a broad range of substituted cyclic sulfates and deliver products with asymmetric tertiary carbon centers. Mechanistic experiments point to a stereoinvertive SN2-like oxidative addition of a nickel complex to the electrophilic substrate.
Collapse
Affiliation(s)
- Meredith S Eno
- Department of Chemistry, Merkert Chemistry Center, Boston College , Chestnut Hill, Massachusetts 02467, United States
| | - Alexander Lu
- Department of Chemistry, Merkert Chemistry Center, Boston College , Chestnut Hill, Massachusetts 02467, United States
| | - James P Morken
- Department of Chemistry, Merkert Chemistry Center, Boston College , Chestnut Hill, Massachusetts 02467, United States
| |
Collapse
|
19
|
Yang W, Wang Z, Sun J. Enantioselective Oxetane Ring Opening with Chloride: Unusual Use of Wet Molecular Sieves for the Controlled Release of HCl. Angew Chem Int Ed Engl 2016; 55:6954-8. [DOI: 10.1002/anie.201601844] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Wen Yang
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay, Kowloon Hong Kong SAR China
| | - Zhaobin Wang
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay, Kowloon Hong Kong SAR China
| | - Jianwei Sun
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay, Kowloon Hong Kong SAR China
| |
Collapse
|
20
|
Yang W, Wang Z, Sun J. Enantioselective Oxetane Ring Opening with Chloride: Unusual Use of Wet Molecular Sieves for the Controlled Release of HCl. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601844] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Wen Yang
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay, Kowloon Hong Kong SAR China
| | - Zhaobin Wang
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay, Kowloon Hong Kong SAR China
| | - Jianwei Sun
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay, Kowloon Hong Kong SAR China
| |
Collapse
|
21
|
Yang W, Sun J. Organocatalytic Enantioselective Synthesis of 1,4-Dioxanes and Other Oxa-Heterocycles by Oxetane Desymmetrization. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509888] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wen Yang
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon Hong Kong SAR China
| | - Jianwei Sun
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon Hong Kong SAR China
| |
Collapse
|
22
|
Yang W, Sun J. Organocatalytic Enantioselective Synthesis of 1,4-Dioxanes and Other Oxa-Heterocycles by Oxetane Desymmetrization. Angew Chem Int Ed Engl 2015; 55:1868-71. [DOI: 10.1002/anie.201509888] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Indexed: 12/11/2022]
Affiliation(s)
- Wen Yang
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon Hong Kong SAR China
| | - Jianwei Sun
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon Hong Kong SAR China
| |
Collapse
|
23
|
Chauhan P, Mahajan S, Enders D. Organocatalytic carbon-sulfur bond-forming reactions. Chem Rev 2014; 114:8807-64. [PMID: 25144663 DOI: 10.1021/cr500235v] [Citation(s) in RCA: 454] [Impact Index Per Article: 45.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Pankaj Chauhan
- Institute of Organic Chemistry, RWTH Aachen University Landoltweg 1 , 52074 Aachen, Germany
| | | | | |
Collapse
|
24
|
White DE, Tadross PM, Lu Z, Jacobsen EN. A broadly applicable and practical oligomeric (salen) Co catalyst for enantioselective epoxide ring-opening reactions. Tetrahedron 2014; 70:4165-4180. [PMID: 25045188 PMCID: PMC4096935 DOI: 10.1016/j.tet.2014.03.043] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The (salen) Co catalyst (4a) can be prepared as a mixture of cyclic oligomers in a short, chromatography-free synthesis from inexpensive, commercially available precursors. This catalyst displays remarkable enhancements in reactivity and enantioselectivity relative to monomeric and other multimeric (salen) Co catalysts in a wide variety of enantioselective epoxide ring-opening reactions. The application of catalyst 4a is illustrated in the kinetic resolution of terminal epoxides by nucleophilic ring-opening with water, phenols, and primary alcohols; the desymmetrization of meso epoxides by addition of water and carbamates; and the desymmetrization of oxetanes by intramolecular ring opening with alcohols and phenols. The favorable solubility properties of complex 4a under the catalytic conditions facilitated mechanistic studies, allowing elucidation of the basis for the beneficial effect of oligomerization. Finally, a catalyst selection guide is provided to delineate the specific advantages of oligomeric catalyst 4a relative to (salen) Co monomer 1 for each reaction class.
Collapse
Affiliation(s)
- David E White
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Pamela M Tadross
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Zhe Lu
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Eric N Jacobsen
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| |
Collapse
|
25
|
Wang Z, Chen Z, Sun J. Catalytic asymmetric nucleophilic openings of 3-substituted oxetanes. Org Biomol Chem 2014; 12:6028-32. [DOI: 10.1039/c4ob00920g] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Important progress has been made in catalytic asymmetric ring-opening of 3-substituted oxetanes, but significant challenges and opportunities remain.
Collapse
Affiliation(s)
- Zhaobin Wang
- Department of Chemistry
- The Hong Kong University of Science and Technology
- Kowloon, China
| | - Zhilong Chen
- Department of Chemistry
- The Hong Kong University of Science and Technology
- Kowloon, China
| | - Jianwei Sun
- Department of Chemistry
- The Hong Kong University of Science and Technology
- Kowloon, China
| |
Collapse
|
26
|
Wang Z, Chen Z, Sun J. Catalytic Enantioselective Intermolecular Desymmetrization of 3-Substituted Oxetanes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201300188] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
27
|
Wang Z, Chen Z, Sun J. Catalytic Enantioselective Intermolecular Desymmetrization of 3-Substituted Oxetanes. Angew Chem Int Ed Engl 2013; 52:6685-8. [DOI: 10.1002/anie.201300188] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Indexed: 11/06/2022]
|
28
|
Chen Z, Wang Z, Sun J. Catalytic Enantioselective Synthesis of Tetrahydroisoquinolines and Their Analogues Bearing a C4 Stereocenter: Formal Synthesis of (+)-(8S,13R)-Cyclocelabenzine. Chemistry 2013; 19:8426-30. [DOI: 10.1002/chem.201301065] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Indexed: 11/11/2022]
|
29
|
Yamamoto Y, Nasu H, Tomioka K. NMR studies on the structure of a lithium amide–chiral diether complex for an asymmetric reaction. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.03.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
30
|
Rix D, Ballesteros-Garrido R, Zeghida W, Besnard C, Lacour J. Macrocyclization of Oxetane Building Blocks with Diazocarbonyl Derivatives under Rhodium(II) Catalysis. Angew Chem Int Ed Engl 2011; 50:7308-11. [DOI: 10.1002/anie.201102152] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Revised: 05/18/2011] [Indexed: 11/09/2022]
|
31
|
Macrocyclization of Oxetane Building Blocks with Diazocarbonyl Derivatives under Rhodium(II) Catalysis. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102152] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
32
|
Burkhard JA, Wuitschik G, Rogers-Evans M, Müller K, Carreira EM. Oxetane als vielseitige Bausteine in der Wirkstoff-Forschung und Synthese. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200907155] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
33
|
|
34
|
Loy RN, Jacobsen EN. Enantioselective intramolecular openings of oxetanes catalyzed by (salen)Co(III) complexes: access to enantioenriched tetrahydrofurans. J Am Chem Soc 2009; 131:2786-7. [PMID: 19199427 PMCID: PMC2765541 DOI: 10.1021/ja809176m] [Citation(s) in RCA: 149] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The catalytic enantioselective intramolecular ring-opening of oxetanes with alcohols is catalyzed by (salen)Co(III) complexes. Either a monomeric or oligomeric catalyst can be used successfully in this transformation, providing 3-substituted tetrahydrofurans in both high yield and enantioselectivity. This methodology extends the range of electrophiles that can be activated toward highly enantioselective addition reactions by (salen)metal catalysts to an important new class.
Collapse
Affiliation(s)
- Rebecca N. Loy
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford St., Cambridge, Massachusetts 02138
| | - Eric N. Jacobsen
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford St., Cambridge, Massachusetts 02138
| |
Collapse
|
35
|
Göthlich APV, Tensfeldt M, Rothfuss H, Tauchert ME, Haap D, Rominger F, Hofmann P. Novel Chelating Phosphonite Ligands: Syntheses, Structures, and Nickel-Catalyzed Hydrocyanation of Olefins. Organometallics 2008. [DOI: 10.1021/om701140c] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexander P. V. Göthlich
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Marcus Tensfeldt
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Helmut Rothfuss
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Michael E. Tauchert
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Dagmar Haap
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Peter Hofmann
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| |
Collapse
|
36
|
Tschöp A, Marx A, Sreekanth AR, Schneider C. Scandium-Bipyridine-Catalyzed, Enantioselective Alcoholysis ofmeso-Epoxides. European J Org Chem 2007. [DOI: 10.1002/ejoc.200601101] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
37
|
Denmark S, Barsanti P, Beutner G, Wilson T. Enantioselective Ring Opening of Epoxides with Silicon Tetrachloride in the Presence of a Chiral Lewis Base: Mechanism Studies. Adv Synth Catal 2007. [DOI: 10.1002/adsc.200600551] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
38
|
Roy CD, Brown HC. Asymmetric Synthesis using Organoboranes. Relative Effectiveness of the B-Halobis(terpenyl)boranes for the Enantioselective Halogenative Cleavage of Representative meso-Epoxides. Aust J Chem 2007. [DOI: 10.1071/ch07118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A comparative study of the relative effectiveness of various Ter2BX, such as dEap2BX, lEap2BX, 2-dIcr2BX, 4-dIcr2BX, and lCleap2BX along with dIpc2BX for the asymmetric ring opening of three representative meso-epoxides (cyclohexene, cyclopentene, and cis-2,3-butene oxides) is reported. Among all the reagents studied, 2-dIcr2BCl (78–80%) demonstrated significant improvement in enantiomeric excess over a previously explored reagent, dIpc2BCl (41%), especially for meso-cyclohexene oxide. Although all these three reagents, dIpc2BBr, dEap2BBr, and 2-dIcr2BBr provided comparable enantiomerically enriched 2-bromocyclohexan-1-ol (76–86%) from meso-cyclohexene oxide, the carene-based reagent, 2-dIcr2BBr showed considerable improvements in enantiomeric excesses in the cases of meso-cyclopentene oxide (67%) and meso-cis-2,3-butene oxide (78%) than those achieved with previously reported reagent, dIpc2BBr (57 and 61% respectively). The enantioselectivity of the reaction was observed to be highly substrate dependent. The present study represents a significant advance in asymmetric synthesis using the chiral organoborane chemistry.
Collapse
|
39
|
Pineschi M. Asymmetric Ring‐Opening of Epoxides and Aziridines with Carbon Nucleophiles. European J Org Chem 2006. [DOI: 10.1002/ejoc.200600384] [Citation(s) in RCA: 210] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mauro Pineschi
- Dipartimento di Chimica Bioorganica e Biofarmacia, Università di Pisa, Via Bonanno 33, 56126 Pisa, Italy, Fax: +39‐050‐221‐9660
| |
Collapse
|
40
|
Asymmetric ring opening of meso-epoxides with B-halobis(2-isocaranyl)boranes 2-dIcr2BX. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.06.044] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
41
|
Vrancken E, Alexakis A, Mangeney P. Organolithium/Chiral Lewis Base/BF3: a Versatile Combination for the Enantioselective Desymmetrization ofmeso-Epoxides. European J Org Chem 2005. [DOI: 10.1002/ejoc.200400745] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
42
|
Alexakis A, Tomassini A, Leconte S. Synthesis and applications of chiral bis-THF in asymmetric synthesis. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.07.091] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
43
|
Tomioka K. [Asymmetric reactions based on activation and structure control of molecule--asymmetric reaction of lithiated nucleophiles]. YAKUGAKU ZASSHI 2004; 124:43-53. [PMID: 14978947 DOI: 10.1248/yakushi.124.43] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The methodology we developed relies on an external chiral coordinating reagent that forms a deaggregated chelate complex with organolithium reagents. Under the positive control of a chiral dimethyl ether of stilbenediol 4, an asymmetric conjugate addition reaction of organolithium reagents with unsaturated imines and esters proceeded successfully to yield the corresponding addition products with reasonably high stereoselectivity. The sense of stereochemistry is predictable based on a coordination model. The methodology has been extended to a catalytic asymmetric 1,2-addition reaction of organolithium reagents with imines. An enantiotopic group differentiating the opening of cyclohexene oxide with organolithium was also mediated by a chiral ligand. The asymmetric Horner-Wadsworth-Emmons reaction of phosphonates and Peterson reaction of alpha-silylester with 4-substituted cyclohexanone were another successful extension of the methodology. A three-component reagent of lithium ester enolate, lithium amide, and chiral diether reacts with imines to afford beta-lactam with reasonably high enantioselectivity. Tridentate aminoether ligands were also shown to affect the catalytic asymmetric addition of lithium ester enoaltes to imines, giving beta-lactams with high enantioselectivity. Asymmetric conjugate addition of lithium amide to enoates was mediated by a chiral diether ligand to give the beta-aminoester with high yield and enatioselectivity. The methodology has been successfully applied to an asymmetric synthesis of biologically potent compounds. Dihydrexidine, a promising anti-Parkinsonism candidate, and salsolidine, a representative isoquinoline alkaloid, have been synthesized using asymmetric addition reactions of organolithium reagents as the key steps.
Collapse
Affiliation(s)
- Kiyoshi Tomioka
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan.
| |
Collapse
|
44
|
|
45
|
|
46
|
|
47
|
Catalytic asymmetric ring opening of epoxides to chlorohydrins with mild chloride donors and enantiopure titanium complexes. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s0957-4166(99)00141-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
48
|
|
49
|
Oguni N, Miyagi Y, Itoh K. Highly enantioselective arylation of symmetrical epoxides with phenyllithium promoted by chiral schiff bases and salens. Tetrahedron Lett 1998. [DOI: 10.1016/s0040-4039(98)02024-3] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
50
|
Badalassi F, Crotti P, Macchia F, Pineschi M, Arnold A, Feringa BL. Catalytic enantioselective carboncarbon bond formation by addition of dialkylzinc reagents to cyclic 1,3-diene monoepoxides. Tetrahedron Lett 1998. [DOI: 10.1016/s0040-4039(98)01704-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|