88964-76-5Relevant academic research and scientific papers
A NOVEL CYCLISATION REACTION OF ALKYLTHIODIPHENYLCYCLOPROPENIUM IONS WITH 1,3-DIKETONES TO GIVE CYCLOPENTADIENOLS
Yoshida, Hiroshi,Nakajima, Mikito,Ogata, Tsuyoshi,Matsumoto, Kiyoshi,Acheson, R. Morrin,Wallis, John D.
, p. 155 - 158 (1983)
Alkylthiodiphenylcyclopropenium ions reacted with 2,4-pentanedione or ethyl acetoacetate to give cyclopentadienol derivatives by ring expansion, while triphenylcyclopropenium perchlorate yielded substituted cyclopropenes.
A Novel Cyclization Reaction of Alkylthiodiphenylcyclopropenium Ions with Acyclic 1,3-Diketones to Give Cyclopentadienols
Yoshida, Hiroshi,Nakajima, Mikito,Ogata, Tsuyoshi,Matsumoto, Kiyoshi,Acheson, R. Morrin,Wallis, John D.
, p. 3015 - 3019 (2007/10/02)
Reaction of methylthio-, ethylthio-, and benzylthiodiphenylcyclopropenium salts with 2,4-pentanedione (3a) and ethyl acetoacetate (3b) yielded the cyclopentadienol derivatives (4) by ring expansion.One of the products 4a was shown to be 4-acetyl-5-hydroxy
