177202-64-1Relevant academic research and scientific papers
Facile access to: N-formyl imide as an N-formylating agent for the direct synthesis of N-formamides, benzimidazoles and quinazolinones
Huang, Hsin-Yi,Liang, Chien-Fu,Lin, Xiu-Yi,Yen, Shih-Yao
supporting information, p. 5726 - 5733 (2020/08/21)
N-Formamide synthesis using N-formyl imide with primary and secondary amines with catalytic amounts of p-toluenesulfonic acid monohydrate (TsOH·H2O) is described. This reaction is performed in water without the use of surfactants. Moreover, N-formyl imide is efficiently synthesized using acylamidines with TsOH·H2O in water. In addition, N-formyl imide was successfully used as a carbonyl source in the synthesis of benzimidazole and quinazolinone derivatives. Notable features of N-formylation of amines by using N-formyl imide include operational simplicity, oxidant- A nd metal-free conditions, structurally diverse products, and easy applicability to gram-scale operation.
2,9-DIAMINO- AND 2-AMINO-8-CARBAMOYL-4-HYDROXY-ALKANOIC ACID AMIDE DERIVATIVES
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, (2008/06/13)
Compounds of the formula I STR1 in which R 1 is arylamino, N-aryl-N-(lower alkoxy-lower alkyl)-amino, N-aryl-N-aryl-lower alkyl-amino or heterocyclyl bonded via a ring carbon atom, X is a carbonyl or methylene group, R 2 and R 3 independently of one another are hydrogen or lower alkyl or, together with the carbon atom with which they are bonded, are a cycloalkylidene radical, R 4 is hydrogen, lower alkyl, lower alkanoyl or lower alkoxycarbonyl, R 5 is hydroxyl, lower alkanoyloxy or lower alkoxycarbonyloxy, R 6 is hydrogen, lower alkyl, lower alkenyl, lower alkynyl, cycloalkyl, cycloalkyl-lower alkyl, aryl-lower alkyl or heteroaryl-lower alkyl having 5 to 7 ring atoms in the heteroaryl ring and R 7 is hydrogen or lower alkyl, or R 6 and R. sub.7, together with the carbon atom with which they are bonded, are a cydoalkylidene radical and R 8 denotes an aliphatic, cycloaliphatic-aliphatic or heteroarylaliphatic radical, and their salts can be used as active ingredients for medicaments for treatment of high blood pressure.
