74676-76-9Relevant academic research and scientific papers
Cyclopentenone Synthesis from 1,1-Dichloroallyllithium-Ketone Adducts as Well as from Dichlorocarbene-Allyl Alcohol Adducts
Hiyama, Tamejiro,Shinoda, Masaki,Tsukanaka, Masao,Nozaki, Hitosi
, p. 1010 - 1014 (2007/10/02)
Treatment of (3,3-dialkyl-2,2-dichlorocyclopropyl)methanols with hydrobromic acid gives 2-cyclopentenones through postulated intermediates, 3-chlorocyclopentadienyl cations.Another method which should give the same cationic intermediates involves trifluoroacetic acid catalyzed reaction of 3,3-dichloro-1-alken-4-ols.This is found to be particularly useful for cyclopentenone annulation.
