CONVERSION OF HETEROCYCLES OF THE DIHYDROTHIAZINE–THIAZOLINE SERIES IN AQUEOUS SOLUTIONS
When heterocycles of the dihydrothiazine–thiazoline series are treated with an aqueous solution of base, they undergo ring opening, leading to formation of ureidoalkanethiols. Study of solvolysis of the heterocycles when treated with ammonia permitted us to observe a novel heterocyclic ring opening reaction, occurring with formation of 2(3)-guanidinoalkanethiols. We have developed a novel preparative method for obtaining 2(3)-guanidinoalkanethiols. English Translation in Chemistry of Heterocyclic Compounds , 2000, 36 (11), pp 1336-1341 http://link.springer.com/article/10.1023/A%3A1017583820717