| 摘要 |
<p>A method is disclosed for the transesterification 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 tertiary amine and the temperature range is from 50.degree.C to the solvent boiling point, an organic solvent being used as the reaction medium. Diazobicyclooctane is a preferred catalyst.</p> |
