Premium
Sulfur–doped Graphene as an Efficient Metal–free Carbocatalyst for the Synthesis of 1,5–Benzodiazepines Derivatives
Author(s) -
JafariChermahini Mohammad Taqi,
Tavakol Hossein,
Salvenmoser Willi
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201904310
Subject(s) - graphene , sulfur , chemical vapor deposition , raman spectroscopy , materials science , chalcone , doping , x ray photoelectron spectroscopy , acetylene , chemical engineering , catalysis , graphene foam , metal , inorganic chemistry , nanotechnology , graphene oxide paper , organic chemistry , chemistry , metallurgy , physics , optoelectronics , engineering , optics
The graphene was doped by introducing atomized sulfur gas flow as sulfur source and acetylene as carbon source at 800 °C in chemical vapor deposition on copper foil. FE‐SEM, TGA, XPS and Raman tests were used to investigate the morphology, thermal behavior and surface properties of the synthesized graphene. A novel, facile and efficient methodology for the synthesis of 1,5–benzodiazepines by the reaction of chalcone with 1,2–phenylenediamine with the mediation of sulfur–doped graphene is described. This method is simple, efficient, environmentally benign, free of toxic catalysts, cost‐effective and has good yields for the formation of these seven‐membered heterocycles.