101
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Li J, Lin L, Hu B, Zhou P, Huang T, Liu X, Feng X. Gold(I)/Chiral
N
,
N′
‐Dioxide–Nickel(II) Relay Catalysis for Asymmetric Tandem Intermolecular Hydroalkoxylation/Claisen Rearrangement. Angew Chem Int Ed Engl 2016; 56:885-888. [DOI: 10.1002/anie.201611214] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Indexed: 01/04/2023]
Affiliation(s)
- Jun Li
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Bowen Hu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Pengfei Zhou
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Tianyu Huang
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin China
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102
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Li J, Lin L, Hu B, Zhou P, Huang T, Liu X, Feng X. Gold(I)/Chiral
N
,
N′
‐Dioxide–Nickel(II) Relay Catalysis for Asymmetric Tandem Intermolecular Hydroalkoxylation/Claisen Rearrangement. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201611214] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jun Li
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Bowen Hu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Pengfei Zhou
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Tianyu Huang
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin China
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103
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Zheng J, Lin L, Dai L, Yuan X, Liu X, Feng X. Chiral N,N'-Dioxide-Scandium(III) Complex-Catalyzed Asymmetric Friedel-Crafts Alkylation Reaction of ortho-Hydroxybenzyl Alcohols with C3-Substituted N-Protected Indoles. Chemistry 2016; 22:18254-18258. [PMID: 27791292 DOI: 10.1002/chem.201604088] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Indexed: 11/11/2022]
Abstract
The first Lewis acid catalyzed asymmetric Friedel-Crafts alkylation reaction of ortho-hydroxybenzyl alcohols with C3-substituted indoles is described. A chiral N,N'-dioxide Sc(OTf)3 complex served not only to promote formation of ortho-quinone methides (o-QMs) in situ but also induced the asymmetry of the reaction. This methodology enables a novel activation of ortho-hydroxybenzyl alcohols, thus affording the desired chiral diarylindol-2-ylmethanes in up to 99 % yield and 99 % ee. A range of functional groups were also tolerated under the mild reaction conditions. Moreover, this strategy gives concise access to enantioenriched indole-fused benzoxocines.
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Affiliation(s)
- Jianfeng Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Li Dai
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Xiao Yuan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
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104
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Yamamoto K, Qureshi Z, Tsoung J, Pisella G, Lautens M. Combining Ru-Catalyzed C-H Functionalization with Pd-Catalyzed Asymmetric Allylic Alkylation: Synthesis of 3-Allyl-3-aryl Oxindole Derivatives from Aryl α-Diazoamides. Org Lett 2016; 18:4954-4957. [PMID: 27632781 DOI: 10.1021/acs.orglett.6b02423] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ruthenium-catalyzed C-H functionalization was successfully combined with palladium-catalyzed asymmetric allylic alkylation in one pot. The novel dual-metal-catalyzed reaction provides a variety of 3-allyl-3-aryl oxindoles from the corresponding α-diazoamides in up to 99% yield with up to 85% ee. The appropriate ligand choice is important to promote the sequential reaction, avoiding undesired metal interaction or ligand exchange.
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Affiliation(s)
- Kosuke Yamamoto
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Zafar Qureshi
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Jennifer Tsoung
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Guillaume Pisella
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
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105
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Wang B, Liang M, Tang J, Deng Y, Zhao J, Sun H, Tung CH, Jia J, Xu Z. Gold/Lewis Acid Catalyzed Cycloisomerization/Diastereoselective [3 + 2] Cycloaddition Cascade: Synthesis of Diverse Nitrogen-Containing Spiro Heterocycles. Org Lett 2016; 18:4614-7. [DOI: 10.1021/acs.orglett.6b02253] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bin Wang
- Key
Lab for Colloid and Interface Chemistry of Education Ministry, School
of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Man Liang
- Key
Lab for Colloid and Interface Chemistry of Education Ministry, School
of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Jian Tang
- Key
Lab for Colloid and Interface Chemistry of Education Ministry, School
of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yuting Deng
- Key
Lab for Colloid and Interface Chemistry of Education Ministry, School
of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Jinhong Zhao
- Key
Lab for Colloid and Interface Chemistry of Education Ministry, School
of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Hao Sun
- Key
Lab for Colloid and Interface Chemistry of Education Ministry, School
of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Chen-Ho Tung
- Key
Lab for Colloid and Interface Chemistry of Education Ministry, School
of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Jiong Jia
- Key
Lab for Colloid and Interface Chemistry of Education Ministry, School
of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Zhenghu Xu
- Key
Lab for Colloid and Interface Chemistry of Education Ministry, School
of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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