MANUFACTURING METHOD FOR 2-AMINO-2-HYDROXYIMINO-N-ALKOXY ACETOIMIDOYL CYANIDE, AND MANUFACTURING INTERMEDIATE THEREOF
申请人:Ihara Chemical Industry Co., Ltd.
公开号:EP3012247A2
公开(公告)日:2016-04-27
The objective of the present invention is to provide an economically advantageous and industrially suitable method for manufacturing a 2-amino-2-hydroxyimino-N-alkoxy acetoimidoyl cyanide represented by general formula (3). [Solution] The present invention enables the safe, high-yield manufacture of the compound represented by general formula (3) (wherein R represents a C3-C6 alkyl group), that is a 2-amino-2-hydroxyimino-N-alkoxy acetoimidoyl cyanide, by reacting the malononitrile represented by formula (1) with an alkali metal salt of nitrous acid in the presence of a protonic acid, and then, after reacting the product with a C3-C6 alkyl halide in the presence of a phase transfer catalyst, reacting the obtained compound represented by novel general formula (2) (wherein R is the same as above), that is a 2-alkoxyimino propane dinitrile, with a hydroxyl amino compound.
本发明的目的是提供一种经济上有利、工业上适用的方法,用于制造通式(3)代表的 2-氨基-2-羟基亚氨基-N-烷氧基乙酰亚氨酰氰化物。[解]本发明可以安全、高产地制造通式(3)代表的化合物(其中 R 代表 C3-C6 烷基),即 2-氨基-2-羟基亚氨基-N-烷氧基乙酰亚氨酰氰化物,其方法是在质子酸存在下,使式(1)代表的丙二腈与亚硝酸的碱金属盐反应、然后,在相转移催化剂存在下,将产物与 C3-C6 烷基卤化物反应,再将得到的新通式 (2) 所代表的化合物(其中 R 与上述相同),即 2-烷氧基亚氨基丙烷二腈,与羟基氨基化合物反应。