We here report a new protocol for the formylation of various amines, primary or secondary, aromatic or alkyl, cyclic or linear, mono- or di-amine, with dimethylformamide (DMF) as the formylation reagent to obtain the corresponding formamides in good to excellent yields over CeO2 catalyst. The reaction requires no homogeneous acidic or basic additives and is tolerant to water.
CN and NH Bond Metathesis Reactions Mediated by Carbon Dioxide
作者:Yehong Wang、Jian Zhang、Jing Liu、Chaofeng Zhang、Zhixin Zhang、Jie Xu、Shutao Xu、Fangjun Wang、Feng Wang
DOI:10.1002/cssc.201500318
日期:2015.6.22
reactions between amines and DMF to synthesize formamides. More than 20 amines, including primary, secondary, aromatic, and heterocyclic amines, diamines, and amino acids, are converted to the corresponding formamides with good‐to‐excellent conversions and selectivities under mild conditions. This strategy employs CO2 as a mediator to activate the amineunder metal‐free conditions. The experimental
Synthesis of 2-Oxazolones and α-Aminoketones via Palladium-Catalyzed Reaction of β,β-Dibromoenamides
作者:David I. Chai、Laura Hoffmeister、Mark Lautens
DOI:10.1021/ol102634c
日期:2011.1.7
beta,beta-Dibromoenamides show two different interesting reactivities based on the choice of R group under the reaction conditions. On the basis of mechanistic studies, both reactions proceed via an intermolecular Suzuki-Miyaura C-C coupling and an intramolecular C-O coupling.
KASHIMA, CHOJI;ARAO, HIDEKI, HETEROCYCLES, 31,(1990) N, C. 1513-1516
作者:KASHIMA, CHOJI、ARAO, HIDEKI
DOI:——
日期:——
NAKAJIMA, MASAYUKI;ANSELME, J. -P., J. ORG. CHEM., 1983, 48, N 15, 2492-2496