Method for the transesterification of thiocarbamic acid esters

Details Method for the transesterification of thiocarbamic acid esters Method for the transesterification of thiocarbamic acid esters

C - Chemistry, Metallurgy

07

C

260/467.2, 260/5

C07C 273/18 (2006.01) C08G 75/26 (2006.01) C07C 275/28 (2006.01)

Patent

CA 1076131

ABSTRACT OF THE DISCLOSURE A method is disclosed for the transeste- rification of thiocarbamic acid esters, the single-step method consisting in reacting the esters in question with compounds of the formula R'(X'H)n wherein X' is O, S, or NH; R' is C2 to C10 alkyl or phenyl radical and n is 1 to 5. The reaction takes place in the presence of a catalyst, the most suitable being a ter- tiary amine and the temperature range is from 50°C to the solvent boiling point, an organic solvent being used as the reaction medium. Diazobicyclooctane is a preferred catalyst.

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