[EN] METHODS OF USING A SOLVENT OR A FOAM BLOWING AGENT<br/>[FR] PROCÉDÉS D'UTILISATION D'UN SOLVANT OU D'UN AGENT DE SOUFFLAGE POUR MATÉRIAU EXPANSÉ
申请人:SOLVAY
公开号:WO2009019219A2
公开(公告)日:2009-02-12
The invention relates to methods using environmentally advantageous compounds or compositions, for example, fluoro ethers, fluoroalkanes, fluoroalkanes, fluoroketones, nitrogen-, sulfur- and phosphorous substituted fluorides, for applications such as foam blowing, solvent cleaning, and refrigeration, as etching gas for semiconductor etching or chamber cleaning, heat transfer, fire extinguishing and production of aerosols, and to specific azeotropes which can be applied in at least one of these processes.
Synthesis of Polyfluorinated Tertiary Alcohols Using Ring Opening Reactions of 2,2-Bis(trifluoromethyl)oxirane
作者:Viacheslav A. Petrov
DOI:10.1055/s-2002-34857
日期:——
This paper describes new reactions of 2,2-bis(trifluoro)-methyl)oxirane (1). Ring opening of 1 by oxygen, nitrogen, sulfur or carbon nucleophiles (Nu ) proceeds regioselectively, with exclusive formation of tertiaryalcohols: NuCH 2 C(CF 3 ) 2 OH. The reaction of 1 with strong acids (HX) is also regioselective and proceeds under mild conditions leading to the formation of XCH 2 C(CF 3 ) 2 OH (X = FSO