Insight into the mechanism of the reduction of α,β-unsaturated chromium(0) carbenes by NaBH4

被引：17
|
作者：
Mancheño, MJ [1 ]
Sierra, MA [1 ]
Gómez-Gallego, M [1 ]
Ramírez, P [1 ]
机构：
[1] Univ Complutense Madrid, Fac Quim, Dept Quim Organ 1, E-28040 Madrid, Spain
来源：
ORGANOMETALLICS | 1999年 / 18卷 / 17期
关键词：
D O I：
10.1021/om990025a
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The reduction of alpha,beta-unsaturated: chromium(0) carbenes 1 and 4 by NaBH4 gives vinyl ethers 2 and / or. allyl ethers 3. Deuterium-labeling studies demonstrate that the reaction occurs by the initial addition of hydride to the carbene carbon, followed by 1,3-rearrangement of the metal center and protonation (for complexes 1), or by a new hydride addition on the allenyl intermediate 8, and subsequent protonation (for complexes 4).
引用
收藏
页码：3252 / 3254
页数：3
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