ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
2-Imino-1,3-thiazetidines from Thioureas with an Intramolecular Hydrogen BondThe 1,3-disubstituted thioureas 1, which have an intramolecular hydrogen bond, react with diiodomethane in the presence of triethylamine to give the 2-imino-1,3-thiazetidines of the type 2. As proton acceptor substituents were used the 4-quinazolyl, the N-phenylbenzimidoyl, the p-toluoyl and the tosyl group. The structure of the thioureas, their S-methyl compounds and the mechanism of formation of the thiazetidines is studied.
Notes:
Die 1,3-disubstituierten Thioharnstoffe 1, die eine intramolekulare Wasserstoffbrückenbindung ausbilden, reagieren mit Diiodmethan in Gegenwart von Triethylamin zu den 2-Imino-1,3-thiazetidinen vom Typ 2. Als Protonenakzeptorsubstituenten R1 fungieren die 4-Chinazolyl-, die N-Phenylbenzimidoyl-, die p-Toluoyl- und die Tosylgruppe. Die Struktur der Thioharnstoffe, ihrer S-Methylverbindungen und der Bildungsmechanismus der Thiazetidine wird untersucht.
Additional Material:
6 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19781110113
