摘要
一般条件下，硫醇不与氮氧方酸正丁酯反应．用碱把硫醇转变成相应的负离子后可以亲核取代氮氧方酸正丁酯的丁氧基，在环丁烯二酮的碳环上导入烃硫基；制得了六个氮硫方酸酯２ａ～２ｄ．３和４．相同条件下，苯硫酚与氮氧方酸正丁酯不反应．
In general ,mercaptans not reacted with n-butyl nitrogenoxosquarate.After themercaptan was transformed into anion by base, the subetitution nucleophilic process of butoxy of n-butyl nitrogenoxosquarate can be took place,and the thioalkyl group could be introduced into thefour carbon ring of the cyclobutendione. Six nitrogen sulfur squaric acid esters 2a～2d,3 and 4 wereprepared.In the same case,thiophenol not reacted with n- butyl nitrogenoxosquarate.
出处
《四川大学学报（自然科学版）》
CAS
CSCD
1995年第6期690-693,共4页
Journal of Sichuan University(Natural Science Edition)
关键词
亲核取代
氮氧方酸正丁酯
巯基化合物
cyclobutendione,nitrogen sulfur squarate,nitrogenoxosquarate,substitutednucleophilic reaction,mercaptan,chemistry of squaric acid
