Unexpected syn hydride migration in the non-aldol aldol reaction
Unexpected syn hydride migration in the non-aldol aldol reaction
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DOI:
10.1021/ol0350801
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发表时间:
2003-09-18
期刊:
影响因子:
5.2
通讯作者:
Houk, KN
中科院分区:
文献类型:
--
作者:
Jung, ME;van den Heuvel, A;Houk, KN
Non-aldol aldol rearrangement of the epoxy silyl ether 13b afforded the expected anti methyl ketone 14, while the diastereomeric epoxy silyl ether 13a afforded the syn methyl ketone 8b via an unprecedented syn hydride migration. Calculations suggest that this unusual reaction proceeds via the carbocation, which cannot easily rotate due to steric hindrance.