Preparation of quinoxaline-1,4-dioxide derivative
专利汇可以提供Preparation of quinoxaline-1,4-dioxide derivative专利检索，专利查询，专利分析的服务。并且PURPOSE: To obtain the titled compound, carbabox, etc. in high yield, only by reacting a novel 2-(di-N-substituted) methyl-quinoxaline-1,4-dioxide with an alkyl carbazinate in a nonaqueous solvent without using a catalyst, e.g., acid, etc.
CONSTITUTION: A novel 2-(di-N-substituted) methyl-quinoxaline-1,4-oxide shown by the formula II (R
2 and R
3 are morpholino, pyrrolidino, piperazino) is reacted with an alkyl carbazinate shown by the formula III (R
1 is alkyl) in a nonaqueous solvetn, e.g., benzene, toluene, to give a quinoxaline-1,4-oxide derivative shown by the formulaI. The novel compound shown by the formula II, for example, is obtained by reacting 2-dichloromethyl-quinoxaline-1,4-dioxide with morpholine, pyrrolidine, or piperazine.
EFFECT: Since the reaction is carried out in a nonaqueous solvent, side reactions, e.g., hydrolysis, etc. can be suppressd. The reaction conditions are mild.
USE: An antifungicide, growth promotor for stock raising.
COPYRIGHT: (C)1982,JPO&Japio，下面是Preparation of quinoxaline-1,4-dioxide derivative专利的具体信息内容。
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