Free radical annulation of dichlorocyclobutanones with sequential ring expansion
作者:Paul Dowd、Wei Zhang、Steven J. Geib
DOI:10.1016/0040-4020(95)00093-n
日期:1995.3
reaction of dichloroketene with 1,5-dienes undergo intramolecular freeradical annulation. Lewis acid-promoted ring-opening of the cyclized cyclobutanones then yields novel ringexpansion products. Reaction of (R)-carvone provides an unusual example leading to the formation of a tricyclic dione. The carbonyl group of carvone enhances the radical cyclization and influences the ring-opening pathway.
Mehta, Goverdhan; Acharyulu, Palle V. R., Journal of the Indian Chemical Society, 1998, vol. 75, # 10-12, p. 601 - 612
作者:Mehta, Goverdhan、Acharyulu, Palle V. R.
DOI:——
日期:——
General transannulation approach to angular triquinanes. Total syntheses of (.+-.)-pentalenene and (.+-.)-epi-pentalenene
作者:Goverdhan. Mehta、Kasibhatla Srinivas. Rao
DOI:10.1021/ja00285a023
日期:1986.12
Mehta, Goverdhan; Padma, S.; Rao, K. Srinivas, Synthetic Communications, 1985, vol. 15, # 13, p. 1137 - 1146
作者:Mehta, Goverdhan、Padma, S.、Rao, K. Srinivas
DOI:——
日期:——
Substitution of chlorocyclobutanones with xanthate salts. The remarkable effect of added base
作者:Rama Heng、Béatrice Quiclet-Sire、Samir Z. Zard
DOI:10.1016/j.tetlet.2009.03.133
日期:2009.7
The substitution reaction of chlorocyclobutanones with dithiocarbonates (xanthates) is greatly accelerated by the addition of a mild base such as DABCO or DBU. (C) 2009 Elsevier Ltd. All rights reserved.