An alternative and efficient protocol for the synthesis of methylated pyrrolo-tetrathiafulvalenes have been developed. The key in this new synthetic protocol is 4,6-dimethyl- N-tosyl-(1,3)-dithiolo[4,5- c]pyrrole-2-one, which can be obtained in high yield in a three-step synthetic procedure from 5-dimethyl-3,4-dithiocyanopyrrole.