Die thermolyse von n-alkoxycarbonyl-phosphinimiden. eine neue phosgenfreie isocyanat-synthese
作者:H.-J. Niclas、D. Martin
DOI:10.1016/0040-4020(78)88107-1
日期:1978.1
The thermolysis of N-alkoxycarbonyl-phosphinimides X3PN-CO-OR (X = Ar, n-Bu) and N-alkoxy-carbonyl-phosphorimidates (X = EtO, PhO) gives alkylisocyanates and alkylisocyanurates at 120°–280° in yields of 20–62 resp. 15–26%. The identification of the by-products of this reaction is described.
Dipeptide compounds having pharmaceutical activity and compositions
申请人:Zambon S.p.A.
公开号:US04761399A1
公开(公告)日:1988-08-02
The compounds of formula ##STR1## wherein the group ##STR2## represents the residue of a natural amino acid selected from the group consisting of glycine, alanine, beta-alanine, phenylalanine, isoleucine, methionine, proline, aspartic acid and arginine; R represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl; and their acid-addition salts with pharmaceutically acceptable organic or inorganic acids; are useful in the preventive and curative treatment of pathologic syndromes due to the lowering of glutathione (GSH) levels.
Lei, Guangqing; Xu, Huatang; Xu, Xuanlang, Phosphorus, Sulfur and Silicon and the Related Elements, 1992, vol. 66, # 1.4, p. 101 - 106
作者:Lei, Guangqing、Xu, Huatang、Xu, Xuanlang
DOI:——
日期:——
A Synthetic Approach to <i>N</i>-Aryl Carbamates via Copper-Catalyzed Chan–Lam Coupling at Room Temperature
作者:Soo-Yeon Moon、U. Bin Kim、Dan-Bi Sung、Won-Suk Kim
DOI:10.1021/jo502828r
日期:2015.2.6
catalyst. The reaction proceeds readily in an open flask at room temperature without additional base, ligand, or additive. Rapid access to urea analogues via a two-step one-pot procedure is enabled by reacting N-arylcarbamates with aluminum–amine complexes. In addition, among several boronic acid derivatives prepared, dimethylphenyl boronate was found to react rapidly in its reaction with benzyl azidoformate