Stereoselective allylation of dichlorocyclobutanones and sequential ring expansions: Construction of cis-fused cycloheptanones
作者:Zhang Wei、Hua Ye、Steven J. Geib、Garrett Hoge、Paul Dowd
DOI:10.1016/s0040-4020(01)89391-1
日期:1994.1
allyl tributyltin, introduces an exo-oriented side chain on the ring. Sequential hydrohalogenation and free radical ring expansion of cyclobutanones gives, three- carbon, ring-expanded, cis-fused cycloheptanones.
Mehta, Goverdhan; Rao, H. Surya Prakash, Synthetic Communications, 1985, vol. 15, # 11, p. 991 - 1000
作者:Mehta, Goverdhan、Rao, H. Surya Prakash
DOI:——
日期:——
Iminyl radicals: Part III. Further synthetically useful sources of iminyl radicals.
作者:Jean Boivin、Eric Fouquet、Anne-Marie Schiano、Samir Z Zard
DOI:10.1016/s0040-4020(01)80851-6
日期:1994.1
New methods for generating iminylradicals have been developed using suitable derivatives of oximes; Barton's decarboxylation of O-carboxymethyl derivatives proved to be particularly effective.
Facile Activation of Zinc. Preparation of Cyclobutanones via Dichloroketene and Cyclopropanes Using the Simmons-Smith Reaction
作者:Yngve Stenstr⊘m
DOI:10.1080/00397919208021545
日期:1992.11
Abstract Zinc powder activated by heating in an inert atmosphere gave good yields when used for the title reactions. The very easy work up procedure for the cyclobutanones further increases the potential of the method.