HYDROLYSIS OF 7,7-SUBSTITUTED DERIVATIVES OF 3-<i>tert</i>-BUTYL-3,4-DIHYDRO-2H-THIAZOLO[3,2-<i>a</i>][1,3,5]TRIAZIN-6(7H)-ONE

Abstract

Alkaline hydrolysis of 3-tert-butyl-7,7-bis(hydroxymethyl)-3,4-dihydro-2H-thiazolo[3,2-a][1,3,5]-triazin-6(7H)-one can occur in three directions: with cleavage of the tetrahydrotriazine ring, with cleavage of the thiazolidine ring, and also with opening of both rings. Depending on the process conditions, either the hydrolysis product corresponding  to the first direction or the hydrolytic decomposition products corresponding to the second and third directions can be obtained in preparative quantities. Hydrolysis of 3,3'-di-tert-butyl-3',4'-dihydro-2'H-spiro[(perhydro-1,3-oxazine)-5,7'-thiazolo[3,2-a][1,3,5]triazin]-6'-one in (NH4)2CO3 solution occurs in two steps: in the first step, cleavage of the tetrahydrotriazine ring occurs; and in the second step, opening of the perhydrooxazine ring occurs.

How to Cite
Ramsh, S. M.; Ivanenko, A. G.; Shpilevyi, V. A.; Medvedskiy, N. L.; Kushakova, P. M.  Chem. Heterocycl. Compd. 2005, 41, 921. [Khim. Geterotsikl. Soedin. 2005, 1089.]

For this article in the English edition, see DOI 10.1007/s10593-005-0249-6

Ramsh, S. M.; Ivanenko, A. G.; Shpilevyi, V. A.; Medvedskiy, N. L.; Kushakova, P. M.