Reactions of thioamides with metal carboxylates in organic media
作者:Martín Avalos、Reyes Babiano、Pedro Cintas、Carlos J. Durán、Francisco J. Higes、JoséL. Jiménez、Ignacio López、Juan C. Palacios
DOI:10.1016/s0040-4020(97)00938-1
日期:1997.10
Reactions of thioamides with metal carboxylates in organic solvents are described. These processes enable the selective preparation of nitriles, imides or amides depending on the substitution pattern of the starting material. Mechanistic hypotheses supported by experimental evidences, including the unequivocal synthesis of bis(thioacetanilide)mercury(II) as a key reaction intermediate, are also proposed. (C) 1997 Elsevier Science Ltd.
The solid-state conformation of the title compound, C20H32N2O9, has been determined at 150 K. The pyranose ring has a distorted chair conformation. Among the possible conformations of the C-N glycosidic bond, that of the E rotamer is observed and a short intramolecular C-methyl. . .O contact may partly stabilize this conformation. Crystal cohesion is stabilized by an extensive network of weak C-H . . .O hydrogen bonds and close contacts.