CATALYST FOR SYNTHESIZING ETHYLENIMINE AS WELL AS PREPARATION METHOD AND APPLICATION THEREOF
申请人:XI'AN MODERN CHEMISTRY RESEARCH INSTITUTE
公开号:US20160318863A1
公开(公告)日:2016-11-03
The present invention relates to a catalyst for synthesizing ethylenimine as well as a preparation method and application thereof. The related catalyst comprises a carrier and metal ions loaded on the carrier; the carrier is a composite oxide comprising titanium, silicon and phosphorus elements; the metal ions are magnesium ions, iron ions and cesium ions; the molar ratio of the magnesium ions to the iron ions to the cesium ions is (1-10):1:0.1; the mass of all metal ions is 0.5-10 percent of that of the carrier. In the related preparation method, a catalyst precursor is roasted at the temperature of 350-650° C., so that the catalyst is obtained; the catalyst precursor is the mixture of the carrier, soluble salt of magnesium, soluble salt of iron and soluble salt of cesium. The present invention also provides the application of the catalyst to synthesis of the ethylenimine by using amino alcohol as the raw material. Compared with a common catalyst which has the requirement on the temperature of over 400° C., the catalyst of the present invention obviously reduces the reaction temperature. The prepared catalyst can catalyze the intramolecular dehydration reaction of the amino alcohol and has relatively excellent selectivity.
Synthesis and biological properties of actinomycin D chromophoric analogs substituted at the 7-carbon with aziridine and aminopropoxy functions
作者:Raj K. Sehgal、Bijan Almassian、David P. Rosenbaum、Ruth Zadrozny、Sisir K. Sengupta
DOI:10.1021/jm00392a018
日期:1987.9
organic biomolecules led us to develop syntheses of novel actinomycinD (AMD) analogues substituted with an aziridine. Reaction of 7-hydroxyactinomycin D with 2-(iodomethyl)aziridine produced the desired 7-(2-aziridinylmethoxy)actinomycin analogue. In an attempt to develop an alternate route to this analogue, 7-(2-azido-3-iodopropoxy)actinomycin was subjected to reduction with dimethylamine-borane complex;