64747-67-7Relevant articles and documents
Transition-metal-free C-H oxidative activation: Persulfate-promoted selective benzylic mono- and difluorination
Ma, Jing-Jing,Yi, Wen-Bin,Lu, Guo-Ping,Cai, Chun
supporting information, p. 2890 - 2894 (2015/04/27)
An operationally simple and selective method for the direct conversion of benzylic C-H to C-F to obtain mono- and difluoromethylated arenes using Selectfluor as a fluorine source is developed. Persulfate can be used to selectively activate benzylic hydrogen atoms toward C-F bond formation without the aid of transition metal catalysts.
An easy access to fluoroalkanes by deoxygenative hydrofluorination of carbonyl compounds via their tosylhydrazones
Yadav, Arvind K.,Srivastava, Vishnu P.,Yadav, Lal Dhar S.
, p. 2154 - 2156 (2013/03/14)
An efficient and operationally simple synthesis of fluoroalkanes by deoxygenative hydrofluorination of carbonyl compounds via their tosylhydrazone surrogates is reported. The reaction can be carried out in a one-pot procedure directly from carbonyl compounds.
Cocatalysis in phase-transfer catalyzed fluorination of alkyl halides and sulfonates
Ma?kosza,Bujok
, p. 209 - 216 (2007/10/03)
Phase-transfer catalyzed (PTC) fluorination of alkyl halides and sulfonates with solid KF proceeds efficiently when cocatalyst triphenyltin fluoride is used. The cocatalytic action of the tin compound consists in continuous formation of difluorotriphenylstannate anion that as the tetraalkyloammonium salt enter the solution where it reacts with alkyl halides to produce alkyl fluorides. The cocatalytic system was used to synthesis of 1,1-difluoroalkanes in two steps from aldehydes. A new kind of PTC was elaborated in which Ph 3SnF acts as phase transfer catalyst via continuous formation of potassium salts of diflurotriphenylstannate anions soluble in dipolar aprotic solvents. A new, simple and general method of synthesis of tetraalkylammonium and potassium salts of difluorotriorgano-tin, silicon and germanium anions is reported.