Use of Dilithiomethane Equivalent in a Novel One-Flask Cyclopentannulation Reaction: A Highly Efficient Total Synthesis of (+/-)-Hirsutene

Article abstract of DOI:10.1021/jo00033a013

A brief synthesis of (+/-)-hirsutene demonstrates the novel use of tris(phenylthio)methane as a dilithiomethane equivalent capable of consecutive conjugate additions to different enones to form a dienolate which can be oxidized to a cyclopentane.