作者:T.Indrasena Reddy、Baburao M. Bhawal、Srinivasachari Rajappa
DOI:10.1016/s0040-4020(01)86309-2
日期:1993.3
7a–c) derived from various primary amines and amino acid esters [glycine, (L)-alanine and (L)-phenylalanine] have been condensed with nitromethane in the presence of the rare-earth exchanged zeolite RE(70%)Na Y to give the S,N-acetals (5a–g, 8a–c). Mercuric chloride catalyzed hydrolysis of these (8a–c) has led to the nitroacetyl derivatives (9a–c). The glycine derivative (7a) gives a dimeric product
在稀土交换沸石的存在下,由各种伯胺和氨基酸酯[甘氨酸,(L)-丙氨酸和(L)-苯丙氨酸]衍生得到的二甲基碳亚氨基二硫代碳酸二甲酯(4a-g,7a-c)已与硝基甲烷缩合。 RE(70%)Na Y生成S,N-乙缩醛(5a–g,8a–c)。氯化汞催化的这些水解(8a–c)导致了硝基乙酰基衍生物(9a–c)。当与沸石单独加热时,甘氨酸衍生物(7a)产生二聚产物(11)。