Doubly stereoconvergent crystallization enabled by asymmetric catalysis.
Doubly stereoconvergent crystallization enabled by asymmetric catalysis.
复制标题
通过不对称催化实现双立体会聚结晶。
DOI:
10.1126/science.abo5048
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发表时间:
2022-06-10
期刊:
影响因子:
56.9
通讯作者:
Johnson, Jeffrey S.
中科院分区:
文献类型:
--
作者:
Cruz, Pedro de Jesus;Cassels, William R.;Chen, Chun-Hsing;Johnson, Jeffrey S.
Synthetic methods that enable simultaneous control over multiple stereogenic centers are desirable for the efficient preparation of pharmaceutical compounds. Herein, we report the discovery and development of a catalyst-mediated asymmetric Michael addition/crystallization–induced diastereomer transformation of broad scope. The sequence controls three stereogenic centers, two of which are stereochemically labile. The configurational instability of 1,3-dicarbonyls and nitroalkanes, typically considered a liability in stereoselective synthesis, is productively leveraged by merging enantioselective Brønsted base organocatalysis and thermodynamic stereocontrol using a single convergent crystallization. The synthesis of useful γ-nitro β-keto amides containing three contiguous stereogenic centers is thus achieved from Michael acceptors containing two prochiral centers.
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影响因子:
15
作者:
Farley, Alistair J. M.;Sandford, Christopher;Dixon, Darren J.
通讯作者:
Dixon, Darren J.
影响因子:
3.6
作者:
IMAMOTO, T;KUSUMOTO, T;YOKOYAMA, M
通讯作者:
YOKOYAMA, M
影响因子:
1.8
作者:
Bartoli, G;Bosco, M;Sambri, L
通讯作者:
Sambri, L
DOI:
10.1002/anie.202006202
发表时间:
2020-09-28
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Golec JC;Carter EM;Ward JW;Whittingham WG;Simón L;Paton RS;Dixon DJ
通讯作者:
Dixon DJ
影响因子:
7.3
作者:
BRADBURY, RH;ALLOTT, CP;ROBINS, PJ
通讯作者:
ROBINS, PJ