Reaction Between 5-Isopropylidene-2,2-dimethyl-1,3-dioxane-4,6-dione and tert -Butyl Isocyanide in the Presence of Primary or Secondary Amines
作者:Issa Yavari、Azizollah Habibi、Mohammad R. Hosseini-Tabatabaei、Hamid R. Bijanzadeh
DOI:10.1007/s00706-003-0619-7
日期:2003.12.1
5-Isopropylidene-2,2-dimethyl-1,3-dioxane-4,6-dione (the condensation product of Meldrum ’s acid and acetone) reacts smoothly with tert -butyl isocyanide in the presence of primary or secondary amines to produce N - tert -butyl-2,2-dimethylbutyramide derivatives and/or 1- tert -butyl-4,4-dimethyl-2,5-dioxopyrrolidine-3-carboxamides in good yields.
5-异亚丙基-2,2-二甲基-1,3-二恶烷-4,6-二酮( 梅德鲁姆 酸和丙酮的缩合产物 )在叔胺或仲胺的存在下与 叔 丁基异氰化物平稳反应 生成 ñ - 叔 丁基-2,2-二甲基丁酰胺的衍生物和/或1- 叔 丁基-4,4-二甲基-2,5-二氧代吡咯烷-3-羧酰胺以良好的收率。