Preparation and Reactions of 1,1-Di(Phenylthio)Cyclobutane Derivatives from 1-(Phenylthio)-1-Cyclopropane Carbinols
作者:Tae Woo Kwon、Michael B. Smith
DOI:10.1080/00397919208019081
日期:1992.8
Abstract 1-(Phenylthio)cyclopropylcarbinyl alcohols are converted to 2-alkyl-1, 1-di(phenylthio)cyclobutane derivatives upon treatment with 48% HBr and ZnBr2. Heating with copper triflate and Hunig's base gave 2-alkyl-1-(phenylthio)cyclobutenes which were pyrolyzed to 3-alkyl-2-di-(phenylthio)-1,3-butadienes in moderate to good yield.
Kwon, Tae Woo; Smith, Michael B., Chemistry Letters, 1989, p. 2027 - 2028
作者:Kwon, Tae Woo、Smith, Michael B.
DOI:——
日期:——
A Novel Route to Geminal Dibromocyclobutanes: Syntheses of 2-Substituted Cyclobutanone Acetals and Their Reaction with Boron Tribromide
作者:Tore Nordvik、Udo H. Brinker
DOI:10.1021/jo035295o
日期:2003.11.1
Nine 2-substituted cyclobutanone acetals, in addition to the parent cyclobutanone acetal, were synthesized from their corresponding cyclobutanones and subsequently treated with boron tribromide. The substituents were either alkyl chains or a phenyl and a benzyl group, respectively. The major compounds obtained in these reactions were, in most cases, the geminal dibromocyclobutanes which were obtained