The first transannular [4+3] cycloaddition reaction: synthesis of the ABCD ring structure of cortistatins.
The first transannular [4+3] cycloaddition reaction: synthesis of the ABCD ring structure of cortistatins.
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DOI:
10.1016/j.tetlet.2008.07.155
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发表时间:
2008-10-06
影响因子:
1.8
通讯作者:
Gung, Benjamin W.
中科院分区:
文献类型:
--
作者:
Craft, Derek T.;Gung, Benjamin W.
A 14-membered macrocycle with an allene and a furan strategically located at across the ring from each other is synthesized using an allene ring closing metathesis reaction. Upon treatment of the macrocycle with a catalytic amount of Pd(OAc)2 and other additives, the first transannular [4+3] cycloaddition occurred to yield 37% of a tetracyclic compound containing the ABC ring structure of the natural products cortistatins.
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