The phenylthio group as a new substituent on the 2-position of sterically protected 1-phosphaethenes

Article abstract of DOI:10.1246/cl.1998.651

The phenylthio group was introduced to the sterically protected phosphaethene-system and 1-(phenylthio)-2-(2,4,6-trit-butylphenyl)-2-phosphaethenyllithium was generated. It has been shown that the lithium reagent behaves like a haloderivative, in terms of elimination, metalation, and coupling reaction, while the E/Z isomerization was observed for the phenylthio-derivative, and a 1,4-diphospha-1,3-butadiene as an oxidative coupling product was analyzed by X-ray.