Highly Z- and enantioselective ring-opening/cross-metathesis reactions catalyzed by stereogenic-at-Mo adamantylimido complexes.
Highly Z- and enantioselective ring-opening/cross-metathesis reactions catalyzed by stereogenic-at-Mo adamantylimido complexes.
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由立体异构 at-Mo 金刚酰亚胺复合物催化的高度 Z 选择性和对映选择性开环/交叉复分解反应。
DOI:
10.1021/ja900097n
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发表时间:
2009-03-25
影响因子:
15
通讯作者:
Hoveyda AH
中科院分区:
文献类型:
--
作者:
Ibrahem I;Yu M;Schrock RR;Hoveyda AH
The first highly Z- and enantioselective class of ring-opening/cross-metathesis (ROCM) reactions is presented. Transformations are promoted in the presence of <2 mol % of chiral stereogenic-at-Mo monoaryloxide complexes, which bear an adamantylimido ligand and are prepared and used in situ. Reactions involve meso oxabicyclic substrates and afford the desired pyrans in 50–85% yield and in up to >98:<2 enantiomer ratio (er). Importantly, the desired chiral pyrans are thus obtained bearing a Z olefin either exclusively (>98:<2 Z:E) or predominantly (≥87:13 Z:E).
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影响因子:
5.2
作者:
Hansen, EC;Lee, D
通讯作者:
Lee, D
影响因子:
15
作者:
Hock, A. S.;Schrock, Richard R.;Hoveyda, Amir H.
通讯作者:
Hoveyda, Amir H.
影响因子:
15
作者:
Van Veldhuizen, JJ;Gillingham, DG;Hoveyda, AH
通讯作者:
Hoveyda, AH
影响因子:
15
作者:
Funk, TW;Berlin, JM;Grubbs, RH
通讯作者:
Grubbs, RH
影响因子:
5.2
作者:
Cortez, G. Alex;Baxter, Carl A.;Hoveyda, Amir H.
通讯作者:
Hoveyda, Amir H.