First synthesis of cis-enediynes from 1,5-diynes by an acid-mediated allylic rearrangement
作者:Wei-Min Dai、Kin Chiu Fong
DOI:10.1016/0040-4039(96)01924-7
日期:1996.11
The first synthesis of cis-enediynes 11 from 1,5-diyne 7 is achieved by treatment with 1 equivalent of CSA in CH2Cl2 at 20 °C in the presence of ROH or RSH to provide 11 as the major products in good yield. An 11-membered ring enediyne 15 was prepared similarly in 47% yield.
通过在ROH或RSH存在下于20°C下在CH 2 Cl 2中用1当量的CSA处理,从1,5-二炔7中首次合成顺式-二烯11,从而以高收率提供了11种主要产物。 。类似地制备了11元环烯二炔15,产率为47%。