Synthesis of hydrohalocyclobutenes through dechlorination of hydrohalocyclobutanes in amide solvents
作者:Wenni Zhang、Fengniu Lu、Chengping Zhang、Qin Guo、Hengdao Quan
DOI:10.1016/j.jfluchem.2020.109506
日期:2020.5
In this study, we synthesized hydrohalocyclobutenes through the dechlorination of hydrohalocyclobutanes in N,N-dimethylformamide and N,N-dimethylacetamide. The structure of the reaction site –CClR1–CClR2– (R1 = H, F; R2 = H, F, Cl) of the reactants was critical for the efficient reductive dechlorination from the 1- and 2- positions. The reaction proceeded efficiently at the –CFCl–CFCl–, –CFCl–CCl2–
The preparation of partially fluorinated fused ring hydrocarbons
作者:Donald J. Burton、Bernard A. Link
DOI:10.1016/s0022-1139(00)81152-5
日期:1983.4
Diels-Alder reactions of fluorinatedcyclobutenes and cyclopentenes with 1,3-butadiene and substituted 1,3-butadienes readily provide partially fluorinated fused ring systems. Hydrogenation, aromatization, acid hydrolysis and dehydrohalogenation of these adducts is easily accomplished and affords useful synthetic routes to partially fluorinated compounds.
Reactions of perfluoro-1-chloro-2-trimethylsilylcyclobutene
作者:Kenneth B. Wiberg、Manuel Marquez
DOI:10.1016/s0040-4039(97)00190-1
日期:1997.3
The reaction of perfluoro-1,2-dichlorocyclobutene with t-butyllithium leads to replacement of Cl by Li. The lithio derivative was stable to −30°C and reaction with trimethylsilyl chloride gave perfluoro-1-chloro-2-trimethylsilylcyclobutene. The reaction of the latter with t-butyllithium leads to dehalogenation and the addition of t-butyl to form a dimeric compound. The reaction of 1-chloro-2,2,3,3