Ethyl N-(diphenylmethylene)glycinate as anionic glycine equivalent. Monoalkylation, dialkylation and Michael additions under solid-liquid phase-transfer catalysis
作者:Anna López、Marcial Moreno-Mañas、Roser Pleixats、Anna Roglans、Jesús Ezquerra、Concepción Pedregal
DOI:10.1016/0040-4020(96)00395-x
日期:1996.6
additions to ethylenic and acetylenic acceptors under appropriate solid-liquid phase transfer catalysis conditions. Further transformations of the α-disubstituted ketimines lead to α-alkylated aspartic and glutamic acid derivatives 10, 15, 19 and 26, to bicyclic amino acids or derivatives featuring pyrazolone and isoxazolone moieties 30 and 33, and to α-substituted (E)-3,4-dehydroglutamic acids.
乙基ñ - (二苯基亚甲基)甘氨酸乙酯,1,经历monoalkylations,dialkylations和Michael加成到合适的固-液相转移催化条件下烯和炔受体。的α二取代的酮亚胺进一步转化导致α -烷基化的天冬氨酸和谷氨酸衍生物10,15,19和26,以双环氨基酸或衍生物设有吡唑啉酮和异恶唑部分30和33,以及α-取代(ë) - 3,4-脱氢谷氨酸。