Synthesis and Structure Revision of Goupiolone A: A Benzotropolone Natural Product
作者:Nobuaki Fukui、Ken Ohmori、Keisuke Suzuki
DOI:10.1002/hlca.201200439
日期:2012.11
Goupiolone A, a benzotropolone natural product, has been synthesized by assembling a benzocyclobutene derivative and a silyl‐substituted cyclopropane unit, followed by thermal ring enlargement. The synthetic sample did not correspond to the reported data. On the basis of biogenetic considerations, an alternative structure with a catechol moiety was proposed, and the synthesis established it as the