Synthesis Pf Alkylaryl- and Diaryxnitriles From Ketones via N-(l-Aryxalkylldene)-Cyanomethyl Amines
摘要:
Alkylaryl- and diarylketones (ArCOR; R = alkyl, aryl, 1) can be converted into nitriles [ArCH(CN)R, 2] containing an additional carbon atom through a base-promoted reaction of N-(1-arylalkylidene)-cyanomethyl amines [ArC(=NCH2CN)R, 3].
Synthesis Pf Alkylaryl- and Diaryxnitriles From Ketones via N-(l-Aryxalkylldene)-Cyanomethyl Amines
摘要:
Alkylaryl- and diarylketones (ArCOR; R = alkyl, aryl, 1) can be converted into nitriles [ArCH(CN)R, 2] containing an additional carbon atom through a base-promoted reaction of N-(1-arylalkylidene)-cyanomethyl amines [ArC(=NCH2CN)R, 3].
Efficient synthesis of N-alkylformimidoyl cyanides
作者:Alvise Perosa、Maurizio Selva、Pietro Tundo
DOI:10.1016/s0040-4039(99)01608-1
日期:1999.10
N-Alkylformimidoylcyanides (RRCHNCHCN, 1) were obtained through a very efficient oxidation of N-alkylaminoacetonitriles (RRCHNHCH2CN, 2) by aq. NaOCl. The reaction was run under very mild and simple conditions and afforded products (as isomer mixtures; ratio of 70–99%) in short reaction times (30–180 min), and in good to excellent yields (67–97%).
A Simple One-Pot Synthesis of Functionalized Ketimines from Ketones and Amine Hydrochloride Salts
作者:M. Selva、P. Tundo、C. A. Marques
DOI:10.1080/00397919508011368
日期:1995.2
Functionalized ketimines of the general formula RR'C(=NCH2Y) [R and R' = Ph, alkyl; Y = CN (1), CH2Cl (2), COOMe (3)] have been prepared by the condensation of ketones with the corresponding primary amine hydrochloride salts [NH2CH2CN.HCl (4), NH2CH2CH2Cl.HCl (5) and NH2CH2COOMe.HCl (6), respectively]. The reported reaction proceeds mildly in a single step without the need of a previous isolation of the free amine from its salt. N,N-Dimethylformamide (DMF) is used as the solvent and TiCl4 as the drying agent.