A Novel Cyclization Reaction of Alkylthiodiphenylcyclopropenium Ions with Acyclic 1,3-Diketones to Give Cyclopentadienols
作者:Hiroshi Yoshida、Mikito Nakajima、Tsuyoshi Ogata、Kiyoshi Matsumoto、R. Morrin Acheson、John D. Wallis
DOI:10.1246/bcsj.56.3015
日期:1983.10
2,4-pentanedione (3a) and ethyl acetoacetate (3b) yielded the cyclopentadienol derivatives (4) by ringexpansion. One of the products 4a was shown to be 4-acetyl-5-hydroxy-5-methyl-1-methylthio-2,3-diphenyl-1,3-cyclopentadiene by X-ray crystallography. Chemical transformation of the products yielded some cyclopentenones. Triphenylcyclopropenium perchlorate reacted with 3a and 3b affording the ketocyclopropene
PLOTKIN V. N.; DOMNIN I. N.; DMITRIEVA E. F.; KOMENDANTOV M. I., ZH. ORGAN. XIMII, 23,(1987) N 5, 1115-1118
作者:PLOTKIN V. N.、 DOMNIN I. N.、 DMITRIEVA E. F.、 KOMENDANTOV M. I.
DOI:——
日期:——
A NOVEL CYCLISATION REACTION OF ALKYLTHIODIPHENYLCYCLOPROPENIUM IONS WITH 1,3-DIKETONES TO GIVE CYCLOPENTADIENOLS
作者:Hiroshi Yoshida、Mikito Nakajima、Tsuyoshi Ogata、Kiyoshi Matsumoto、R. Morrin Acheson、John D. Wallis
DOI:10.1246/cl.1983.155
日期:1983.2.5
Alkylthiodiphenylcyclopropenium ions reacted with 2,4-pentanedione or ethyl acetoacetate to give cyclopentadienol derivatives by ring expansion, while triphenylcyclopropenium perchlorate yielded substituted cyclopropenes.