New methods and reagents in organic synthesis. 35. A new synthesis of some non-steroidal anti-inflammatory agents with the 2-arylpropionic acid skeleton by the use of diphenyl phosphorazidate (DPPA) as a 1,3-dipole.
1,5-Thione-thiol isomerization of 3-O-phosphorylated 1,4-benzodiazepine
作者:Yu. G. Gololobov、I. Yu. Krasnova、S. V. Barabanov、M. V. Makarov、V. N. Khrustalev、S. A. Andronati、V. I. Pavlovskii
DOI:10.1134/s1070363214090187
日期:2014.9
Diphenylphosphinite, 1,4-benzodiazepine 3-O-derivative, was converted into the corresponding imides by the Staudinger reaction with azides of diphenylphosphinic, diphenylthiophosphinic, and diphenylphosphoric acids. The imide derived from azide of diphenylthiophosphinic acid undergoes the isomerization into the corresponding thiol when heated in the presence of catalytic amounts of a substituted 3-chloro-1,4-benzodiazepine.