Tetramethylthiourea

Tetramethylthiourea is an organosulfur compound with the formula. This commercially available compound is used as a ligand in homogeneous catalysis and in organic synthesis.

Structure

The core of the compound is thiourea, with each nitrogen connected to two methyl groups. The molecule is planar. The C=S bond is 0.02 Å shorter than in thiourea itself.

Reactions

Sulfur is the basic site in tetramethylthiourea. Alkylation occurs at S, affording isothiouronium salts.
Tetramethylthiourea forms many coordination complexes. Two examples tetrahedral and linear AuBrL, where L =.