Giannola, Libero Italo published the artcileAddition reactions of acetylenic esters with monosubstituted thioureas, Recommanded Product: 1,1-Dimethylthiourea, the publication is Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) (1978), 1428-31, database is CAplus.
Treating H2NCSNHR (R = Et, Me) with MeO2CCú·CCO2Me gave 54 and 43% adducts I, and 22 and 38% adducts II, resp. Previous studies by J. W. Lown and J.C.N. Ma (1967) indicated the formation of only one product.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) published new progress about 6972-05-0. 6972-05-0 belongs to catalysis-chemistry, auxiliary class Thiourea,Amine,Aliphatic hydrocarbon chain,Amide, name is 1,1-Dimethylthiourea, and the molecular formula is C3H8N2S, Recommanded Product: 1,1-Dimethylthiourea.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia