Geminal diesters, N-alkyl/aryl-2,2-bis(ethoxycarbonyl)vinylamines, were found to undergo selective hydrolysis in the presence of BF3·OEt2 at room temperature to give the corresponding half esters. Neighboring group participation by nitrogen in the hydrolysis was observed. This method is useful for the preparation of highly functionalized malonic acid half esters.
Structural investigation of (2E)-2-(ethoxycarbonyl)-3-[(4-methoxyphenyl)amino]prop-2-enoic acid: X-ray crystal structure, spectroscopy and DFT
作者:Perumal Venkatesan、Venkatachalam Rajakannan、Natarajan S. Venkataramanan、Andivelu Ilangovan、Tom Sundius、Subbiah Thamotharan
DOI:10.1016/j.molstruc.2016.04.090
日期:2016.9
Abstract The title compound, (2E)-2-(ethoxycarbonyl)-3-[(4-methoxyphenyl)amino]prop-2-enoic acid is characterized by means of X-ray crystallography, spectroscopic methods and quantum chemical calculations. The title compound crystallizes in centrosymmetric space group P21/c. Moreover, the crystal structure is primarily stabilized through intramolecular N H⋯O and O H⋯O and intermolecular N H⋯O and C