A mechanistically unprecedented approach for the formation of tertiary amides from N,N-dialkylchlorothiophosphoramidates and aldehydes has been developed. The reaction occurred via the activation of aldehydes with N,N-dialkylchlorothiophosphoramidates followed by amidation with dialkylamine pendent of the same phosphoramidate.
Catalyst-free amidation of aldehyde with amine under mild conditions
作者:Hongyin Yang、Wenjian Hu、Shengjue Deng、Tiantian Wu、Haiman Cen、Yiping Chen、Dela Zhang、Bo Wang
DOI:10.1039/c5nj01372k
日期:——
A highly efficient, catalyst-free and one-pot procedure for the direct synthesis of amides from aldehydes and amines under mild conditions has been developed.
Oxidative amidation of benzaldehyde using a quinone/DMSO system as the oxidizing agent
作者:Itzel Mejía-Farfán、Manuel Solís-Hernández、Pedro Navarro-Santos、Claudia A. Contreras-Celedón、Carlos Jesus Cortés-García、Luis Chacón-García
DOI:10.1039/c9ra02893e
日期:——
efficient transition-metal-based heterogeneous catalyst free procedure for obtaining the oxidative amidation of benzaldehyde using quinones as oxidizing agents in low molar proportions is described here. Pyrrolylquinones (PQ) proved to be more suitable than DDQ and 2,5-dimethylbenzoquinone to conduct the oxidation process. Although the solvent itself acted as the oxidant with low to moderate yields,
Disclosed herein are novel amidic nitrone and a method of manufacturing a data storage media comprising mixing the amidic nitrone, as a photochromic dye, with an organic material or an inorganic material to form a holographic composition and molding the holographic composition into holographic data storage media. Disclosed herein too is an article comprising a photochromic dye and an organic material, wherein the article is used as a data storage media. Disclosed herein too is a method for recording information comprising irradiating an article that comprises a photochromic dye, wherein the irradiation is conducted with electromagnetic energy having a wavelength of about 350 to about 1,100 nanometers; and reacting the photochromic dye.