1388917 Amine formylation E R SQUIBB & SONS Inc 28 Feb 1972 [1 March 1971] 9109/72 Heading C2C Primary or secondary amines of formula R 1 R 2 NH, wherein R 1 and R 2 are the same or different and are each hydrogen or an optionally substituted, saturated or unsaturated, aliphatic or...
Formamides represent an abundant class of compounds in organic synthesis. They can be made efficiently by the direct catalytic coupling of methanol with amines in the presence of metal-based catalysts. However, these catalysts require complicated organic ligands, susceptible to oxidative self-degradation...
Formylation of amines catalysed by protic ionic liquids under solvent-free conditiondoi:10.1016/j.tetlet.2012.11.017AmineProtic ionic liquidN-formylationFormamidesCatalysisFormic acidA fast, efficient and simple route for the N-formylation of amines has been developed by treating amines with 85% ...
The novel catalyst allows chemoselective formylation of amines in the presence of alcohols and hydroxyl functionalities, respectively.doi:10.1002/chin.201222036Reihaneh MalakootiDep. Chem., Univ. Birjand, Birjand, IranSara SobhaniDep. Chem., Univ. Birjand, Birjand, IranNasrin Razavi...
ChemInformZ.G.Wang,M.Lu.Highly Efficient N-Formylation of Amines with Ammonium Formate Catalyzed by Nano-Fe3O4 in PEG-400. RSC Adv . 2014Wang Z. -G., and Lu M. (2014) Highly efficient N-formylation of amines with ammonium formate catalyzed by nano-Fe3O4 in PEG-400. RSC Adv., 4...
A simple and convenient method for the N-formylation of primary and secondary amines including amino acids has been developed utilizing formamide and sodium methoxide in moderate to excellent yield. This reagent is also utilized for one pot conversion of compounds having amino esters to N-formyl ami...
Immobilization of ionic liquids to covalent organic frameworks for catalyzing the formylation of amines with CO2 and phenylsilane 来自 掌桥科研 喜欢 0 阅读量: 156 作者:B Dong,L Wang,S Zhao,R Ge,X Song,W Yu,Y Gao 摘要: We presented the immobilization of ionic liquids on the channel walls ...
The combination of PhSiH3 and CO2 may be used in the N-formylation of amines employing base catalysts such as 1,8‐diazabicycloundec‐7‐ene and 1,5,7‐triazabicyclo[4.4.0]dec‐5‐ene (TBD), [24] and in the N-methylation of amines using ruthenium-based [25] or metal-free [26,27...
Formylation of secondary amines by the use of DMFA under the action of low-valence nickel complexes The model for the annealing of a radiation-induced point defect in silica, the Egamma' center, is identified in the temperature range (150-550)掳C . Thermal treatments in controlled atmospheres...
In this protocol, appropriate amines react with formic acid to afford formamides and in situ formamide derivatives react with the active methylene group of α,β-unsaturated thiobarbituric acid under catalyst-free condition in aqueous medium. Water plays an excellent role in acting as the solvent ...