A Convenient Synthesis of 3- and 3,4-Substituted 4,5-Dihydroisoxazole-5-Acetic Acids
摘要:
The 4,5-dihydroisoxazole-5-acetic acids 4a-j were prepared from the ketoximes 1a-j, 2,2-dimethyl-5-methoxymethylene-1,3-dioxan-4,6-dione (2) and butyllithium in yields from 35 to 79%.
A Convenient Synthesis of 3- and 3,4-Substituted 4,5-Dihydroisoxazole-5-Acetic Acids
摘要:
The 4,5-dihydroisoxazole-5-acetic acids 4a-j were prepared from the ketoximes 1a-j, 2,2-dimethyl-5-methoxymethylene-1,3-dioxan-4,6-dione (2) and butyllithium in yields from 35 to 79%.