Stabilities of carbonium ions in solution. 6. Heats of formation of simple alkyl carbonium ions in sulfuryl chloride fluoride and their relevance to the nonclassical ion question
METHOD FOR PRODUCING FLUORINATED ALKANE, METHOD FOR SEPARATING AND RECOVERING AMIDINE BASE, AND METHOD FOR USING RECOVERED AMIDINE BASE
申请人:Kanto Denka Kogyo Co., Ltd.
公开号:US20180118642A1
公开(公告)日:2018-05-03
The present invention provides: a method for producing a fluorinated alkane represented by the formula (2): R
2
—F, wherein an alcohol having 3 to 5 carbon atoms is fluorinated by a fluorinating agent represented by the formula (1): R
1
SO
2
F in the absence of a solvent, and in the presence of a base selected from the group consisting of an amidine base and a phosphazene base; a method for separating and recovering an amidine base from an amidine base-sulfonate complex represented by the following formula (5); and a method for using a recovered amidine base. In the formula, R
1
represents a methyl group, an ethyl group or an aromatic group, R
2
represents an alkyl group having 3 to 5 carbon atoms, and n is 0 or 2.
Reaction of alkyl 2-chloro-1,1,2-irifluoroethyl ethers with lewis acids
作者:Milos Hudlicky
DOI:10.1016/s0022-1139(00)82333-7
日期:1985.9
Ethyl 2-chloro-1,1,2-trifluoroethylether heated with boron trifluoride etherate gave ethyl fluoride and chlorofluoroacetyl fluoride. When heated with aluminum chloride, it afforded a mixture of ethyl fluoride, ethyl chloride, chlorofluoroacetyl fluoride, and chlorofluoroacetyl chloride. Treatment of the acyl halides with ethanol yielded ethyl chloro- fluoroacetate. Butyl and octyl 2-chloro-1,1,2-trifluoroethyl
New method of preparation of fluoro compounds via utilisation of ammonium and phosphonium perfluorocyclobutane ylides as fluorination reagents
作者:Sergej V. Pasenok、Marijn E. de Roos、Wolfgang K. Appel
DOI:10.1016/0040-4020(96)00019-1
日期:1996.2
Ammonium- and phosphoniumperfluorocyclobutane ylides (7–11), easily prepared from perfluorocyclobutene (1) and tertiary amines (2–4) or phosphines (5,6), smoothly react with primary or secondary alcohols (12–18) and carboxylic acids (19,20) with formation of alkyl fluorides (21–26) or acyl fluorides (27,28), respectively. A mechanism for the reaction is proposed.
The present invention is a method for producing a fluorinated hydrocarbon represented by a structural formula (3), wherein an ether compound represented by a structural formula (1) and an acid fluoride represented by a structural formula (2) are brought into contact with each other in a hydrocarbon-based solvent, in the presence of a catalyst in which boron trifluoride is supported on a metal oxide: wherein R
1
and R
2
represent an alkyl group having 1 to 3 carbon atoms, R
3
represents a hydrogen atom, a methyl group or an ethyl group, and R
4
and R
5
represent a methyl group or an ethyl group; and R
4
and R
2
may be bonded to each other to form a cyclic structure. Through the present invention, a method for industrially advantageously producing 2-fluorobutane is provided.