Abstract
A general, one-step procedure for the synthesis of alkyl and
aryl alkylcarbamates, by the direct reaction of S -methyl N -alkylthiocarbamates with
alcohols or phenols in toluene at reflux in the presence of triethylamine,
is reported. All the target products were obtained in high yield
(15 examples, average yield 94%) and very high purity (>99.2%).
The recovery of a co-product of industrial interest, methanethiol,
in an amount of one mole for each mole of thiocarbamate, with complete
exploitation of the reagent, should also be noted.
Key words
carbamates - thiocarbamates -
S ,S -dimethyl dithiocarbonate - green
chemistry
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