期刊:
CANADIAN JOURNAL OF CHEMISTRY,2007年85(3):208-213 ISSN:0008-4042
通讯作者:
Xiao, W.-J.(wxiao@mail.ccnu.edu.cn)
作者机构:
[Chen, Jia-Rong; Li, Xin-Yong; Cao, Yi-Ju; Xiao, Wen-Jing] Key Laboratory of Pesticide and Chemical Biology, Central China Normal University, Ministry of Education, 152 Luoyu Road, Wuhan, Hubei 430079, China;Department of Chemistry, Xianning College, Xianning, Hubei 437000, China;[Huang, Wen-Ping] Key Laboratory of Pesticide and Chemical Biology, Central China Normal University, Ministry of Education, 152 Luoyu Road, Wuhan, Hubei 430079, China<&wdkj&>Department of Chemistry, Xianning College, Xianning, Hubei 437000, China
通讯机构:
[Xiao, W.-J.] K;Key Laboratory of Pesticide and Chemical Biology, 152 Luoyu Road, Wuhan, Hubei 430079, China
作者机构:
[Hui Liu; Hongwu He; Wen-Jing Xiao] Key Laboratory of Pesticide and Chemical Biology,Ministry of Education,College of Chemistry,Central China Normal University,152 Luoyu Road,Wuhan,Hubei 430079,China
会议名称:
第17届国际磷化学学术会议(The 17th International Conference on Phosphorus Chemistry)
会议时间:
2007-4-15
会议地点:
厦门
会议主办单位:
中国化学会
会议论文集名称:
第17届国际磷化学学术会议(The 17th International Conference on Phosphorus Chemistry)论文集
摘要:
An operationally trivial and environmentally benign procedure for direct Michael addition has been developed. The reaction of various ketones with nitroolefins can be performed in water to afford the corresponding nitro compounds in high yields in the presence of a pyrrolidine-thiourea organocatalyst at 35 degrees C. The reaction exhibits a high stereoselectivity, with high enantioselectivities (up to 99%) as well as diastereoselectivities (up to 99:1) being achieved under the optimal conditions. (c) 2006 Elsevier Ltd. All rights reserved.
作者机构:
[Liu, Hiu; Li, Chang-Feng; Xiao, Wen-Jing; Liao, Jie; Cao, Yi-Ju; Liu, Xiao-Peng] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Hubei, Peoples R China.;[Li, Chang-Feng] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, 152 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China.
通讯机构:
[Li, Chang-Feng] C;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, 152 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China.
摘要:
An enantioselective organocatalytic intramolecular ring-closing Friedel-Crafts-type alkylation of indolyl alpha,beta-unsaturated aldehydes has been developed. This powerful new strategy allows enantioselective access to THPIs and THBCs in a straightforward and atom-economical manner.
作者机构:
[杨劭; 杨娇艳; 肖敏] College of Life Sciences, Central China Normal University, wuhan, 430079, China;[肖文精] College of Chemistry, Central China Normal University, wuhan, 430079, China
通讯机构:
[YANG, S.] C;College of Life Sciences, , wuhan, 430079, China
作者机构:
The Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
会议名称:
第三届“农药与环境安全”国际学术研讨会暨第七届“植物化学保护和全球法律一体化”国际研讨会(3rd International Symposium on Pesticide and Environmental Safety & 7th International Workshop on Crop Protection Chemistry and Regulatory Harmonization)
会议时间:
2007-10-09
会议地点:
北京
会议论文集名称:
第三届“农药与环境安全”国际学术研讨会暨第七届“植物化学保护和全球法律一体化”国际研讨会(3rd I
摘要:
Optically active α-substituted phenoxyacetyloxy and aroyloxy phosphonates have been synthesized via catalytic asymmetric hydrogenation of the corresponding prochiral α, β- unsaturated phosphonates using Rh (I)/(R, R)-Me-DuPhos as the catalyst in methanol at 18℃. The asymmetric hydrogenation reaction exhibits excellent enantioselectivity with enantiomeric excesses from 91% to 96%.
摘要:
Organocatalytic asymmetric direct aldol reactions in brine with high diastereo- and enantioselectivities, using a readily available bifunctional amide catalyst, were developed.
作者机构:
Univ Ottawa, Dept Chem, Ctr Catalysis Res & Innovat, Ottawa, ON K1N 6N5, Canada.;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Hubei, Peoples R China.;[Yang, Qian] Univ Ottawa, Dept Chem, Ctr Catalysis Res & Innovat, 10 Marie Curie, Ottawa, ON K1N 6N5, Canada.
通讯机构:
[Yang, Qian] U;Univ Ottawa, Dept Chem, Ctr Catalysis Res & Innovat, 10 Marie Curie, Ottawa, ON K1N 6N5, Canada.
摘要:
A series of new pyrrolidine derivatives were prepared directly in very good yields, from the substrates containing a basic or nucleophilic N atom via ring-closing enyne metathesis reaction under mild reaction conditions. Moreover, the reaction occurs smoothly without the presence of ethylene gas.
作者机构:
[Xinyong Li; Weiwei Jin; Caibao Chen; Wen-Jing Xiao] Key Laboratory of Pesticide and Chemical Biology,Ministry of Education,College ot Chemistry,Central China Normal University,152 Luoyu Road,Wuhan,Hubei 430079,China
会议名称:
第17届国际磷化学学术会议(The 17th International Conference on Phosphorus Chemistry)
会议时间:
2007-4-15
会议地点:
厦门
会议主办单位:
中国化学会
会议论文集名称:
第17届国际磷化学学术会议(The 17th International Conference on Phosphorus Chemistry)论文集
作者机构:
[Li, Liang; Xiao, Wen-Jing; Chen, Jia-Rong; Liu, Xiao-Peng; Qiao, Yong-Feng; Zhang, Jian-Ming; Zhu, Xiao-Yu] Cent China Normal Univ, Coll Chem, Minist Educ Res, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.;[Xiao, Wen-Jing] Cent China Normal Univ, Coll Chem, Minist Educ Res, Key Lab Pesticide & Chem Biol, 152 Luoyu Rd, Wuhan 430079, Peoples R China.
通讯机构:
[Xiao, Wen-Jing] C;Cent China Normal Univ, Coll Chem, Minist Educ Res, Key Lab Pesticide & Chem Biol, 152 Luoyu Rd, Wuhan 430079, Peoples R China.
摘要:
An efficient asymmetric aldol condensation of ketones with isatins has been developed using an L-proline-derived bifunctional organocatalyst. This strategy allows the enantioselective synthesis of a variety of 3-alkyl-3-hydroxyindolin-2-ones with a stereogenic quaternary carbon center in excellent yields with good to excellent enantiomeric excess. The method has been applied to the enatioselective synthesis of (S)-convolutamydine successfully. (c) 2007 Elsevier Ltd. All rights reserved.
期刊:
CANADIAN JOURNAL OF CHEMISTRY,2006年84(11):1529-1533 ISSN:0008-4042
通讯作者:
Xiao, W.-J.(wxiao@mail.ccnu.edu.cn)
作者机构:
[Cao, Yi-Ju; Lai, Yuan-Yuan; Cao, Hong; Xing, Xiao-Ning; Xiao, Wen-Jing] Key Laboratory of Pesticide and Chemical Biology, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China;Department of Chemistry, Kaili College, 22 Wenhua North Road, Kaili, Guizhou 556000, China;[Wang, Xiang] Key Laboratory of Pesticide and Chemical Biology, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China<&wdkj&>Department of Chemistry, Kaili College, 22 Wenhua North Road, Kaili, Guizhou 556000, China
通讯机构:
[Xiao, W.-J.] K;Key Laboratory of Pesticide and Chemical Biology, 152 Luoyu Road, Wuhan, Hubei 430079, China