Synlett 2012; 23(7): 1031-1034
DOI: 10.1055/s-0031-1290507
letter
© Georg Thieme Verlag Stuttgart · New York

Primary 1,2-Diamine Catalysis (V): Efficient Asymmetric Aldol Reactions of Isatins with Cyclohexanone

Yi Liu
State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmeceutical Science, Peking University, Beijing 100191, P. R. of China, Email: lirt@mail.bjmu.edu.cn   Email: sunqi@bjmu.edu.cn
,
Pengchao Gao
State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmeceutical Science, Peking University, Beijing 100191, P. R. of China, Email: lirt@mail.bjmu.edu.cn   Email: sunqi@bjmu.edu.cn
,
Junfeng Wang
State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmeceutical Science, Peking University, Beijing 100191, P. R. of China, Email: lirt@mail.bjmu.edu.cn   Email: sunqi@bjmu.edu.cn
,
Qi Sun*
State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmeceutical Science, Peking University, Beijing 100191, P. R. of China, Email: lirt@mail.bjmu.edu.cn   Email: sunqi@bjmu.edu.cn
,
Zemei Ge
State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmeceutical Science, Peking University, Beijing 100191, P. R. of China, Email: lirt@mail.bjmu.edu.cn   Email: sunqi@bjmu.edu.cn
,
Runtao Li*
State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmeceutical Science, Peking University, Beijing 100191, P. R. of China, Email: lirt@mail.bjmu.edu.cn   Email: sunqi@bjmu.edu.cn
› Author Affiliations
Further Information

Publication History

Received: 04 January 2012

Accepted after revision: 06 February 2012

Publication Date:
16 March 2012 (online)


Abstract

1,2-Diaminocyclohexane-hexanedioic acid has been demonstrated to catalyze the asymmetric aldol reactions of cyclo­ketones and various isatin derivatives efficiently in MeOH–H2O. The corresponding products were obtained in good yields (70–90%) with high diastereoselectivity (up to 99:1 anti/syn) and enantio­selectivity (up to 99% ee).