1,3,6 toriarukiruhekisahidoro 1,3,6 toriazoshin 2 on and its production manner

摘要

PURPOSE: To obtain the novel compound presenting excellent solvent effect, also excellent in oxidation resistance at elevated temperatures, an aprotic polar solvent useful as a solvent for high-molecular compounds or organic reactions. ;CONSTITUTION: The compound of formula I (R is a 1-8C alkyl), e.g., 1,3,6- trimethylhexahydro-1,3,6-triazocin-2-one. The compound of the formula I is obtained by reaction between (A) a compound of the formula II prepared, in advance, by reaction of a 1,2-dihalogenoethane with an amine of formula R-NH₂ and (B) urea; specifically, a urea intermediate is formed at ≥160°C in the initial reaction, and the subsequent decomposition of the urea intermediate is conducted at a raised temperature of ≥200°C; and the molar ratio A/B is set at 1.2 to 1.7 in this reaction.;COPYRIGHT: (C)1995,JPO