研究了由已二酸二乙酯与水合肼反应合成己二酰二肼。再用乙酸酐酰化己二酰二肼得到金属减活剂N。
Metal deactivator N, N'-Di-acetyladipic dihydrazine was prepared by reacting diethyl adipate with hydrazine hydrate, and then was treated with acetic anhydride.
方法原甲酸三乙酯与氰乙酸乙酯缩合，然后和羟乙基肼经环合、水解等一锅法合成5-氨基吡唑-4-甲酸，然后在亚硫酸钠存在条件下加热脱羧得到5-氨基-1-羟乙基吡唑。
METHODS 5-amino-1-hydroxyethyl pyrazole-4-carboylic acid was synthesized through condensation of ethyl cyanoacetate and triethyl orthoformate followed by one-pot methodology of cyclization, hydolysis.
方法原甲酸三乙酯与氰乙酸乙酯缩合，然后和羟乙基肼经环合、水解等一锅法合成5-氨基吡唑-4-甲酸，然后在亚硫酸钠存在条件下加热脱羧得到5-氨基-1-羟乙基吡唑。
METHODS 5-amino-1-hydroxyethyl pyrazole-4-carboylic acid was synthesized through condensation of ethyl cyanoacetate and triethyl orthoformate followed by one-pot methodology of cyclization, hydolysis.
应用推荐