854139-17-6Relevant articles and documents
A novel synthesis of bicyclo[3.3.0]oct-1-en-3-ones from cyclobutanones through [chloro(p-tolylsulfinyl)methylidene]cyclobutanes with ring expansion
Kawashima, Tadashi,Kashima, Hiroaki,Wakasugi, Daisuke,Satoh, Tsuyoshi
, p. 3767 - 3770 (2005)
Treatment of [chloro(p-tolylsulfinyl)methylidene]cyclobutanes, which were synthesized from cyclobutanones and chloromethyl p-tolyl sulfoxide in three steps in high overall yields, with excess cyanomethyllithium gave enaminonitriles in high yields. Heating