Aminomethylation of Thiourea with Formaldehyde and Cyclic Amines
作者:Yu. A. Martinovich、S. M. Ramsh、F. Hamoud、V. S. Fundamenskii、V. V. Gurzhii、V. I. Zakharov、E. S. Khrabrova
DOI:10.1134/s107042801806009x
日期:2018.6
Three-component condensation of thiourea with equimolar amounts of formaldehyde and morpholine afforded N-(morpholin-4-ylmethyl) derivative, whereas analogous reaction with 2 equiv of formaldehyde and amine gave symmetrical N,N′-bis(morpholin-4-ylmethyl)thiourea. In the condensation of thiourea with piperidine and formaldehyde, only symmetrical N,N′-bis(piperidin-1-ylmethyl)thiourea was isolated, regardless