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Direct Asymmetric Vinylogous and Bisvinylogous Mannich-Type Reaction Catalyzed by a Copper(I) Complex
被引:72
|作者:
Zhang, Hai-Jun
[1
]
Shi, Chang-Yun
[1
]
Zhong, Feng
[1
]
Yin, Liang
[1
]
机构:
[1] Chinese Acad Sci, Shanghai Inst Organ Chem, CAS Key Lab Synthet Chem Nat Subst, 345 Lingling Rd, Shanghai 200032, Peoples R China
关键词:
ENANTIOSELECTIVE MICHAEL ADDITION;
BRONSTED ACID;
ALDOL REACTION;
DIELS-ALDER;
ALPHA;
BETA-UNSATURATED PYRAZOLAMIDES;
DIENAMINE CATALYSIS;
GAMMA-BUTENOLIDES;
HIGHLY EFFICIENT;
N-ACYLPYRAZOLES;
KETONES;
D O I:
10.1021/jacs.6b13042
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A direct catalytic asymmetric vinylogous Mannich-type reaction has been disclosed in good yield, excellent regio-, diastereo- and enantioselectivity. The key to control the regioselectivity is the combination of a bulky N-acylpyrazole and a bulky bisphosphine ligand. The catalytic system was extended to a bisvinylogous Mannich-type reaction by changing the ligand. The synthetic utility of the vinylogous products was demonstrated by several transformations.
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页码:2196 / 2199
页数:4
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