A green and sustainable approach for the synthesis of 1,5-benzodiazepines and spirooxindoles in one-pot using a MIL-101(Cr) metal–organic framework as a reusable catalyst
作者:Fillip Kumar Sarkar、Ajay Gupta、Ramen Jamatia、Jasha Momo H. Anal、Amarta Kumar Pal
DOI:10.1039/d1nj03176g
日期:——
MIL-101(Cr) has been efficiently utilized for the synthesis of biologically relevant heterocycles such as 1,5-benzodiazepines and spirooxindoles in one-pot. MIL-101(Cr) was prepared via a solvothermal method and characterized by FT-IR, PXRD, SEM, TEM, EDX, and ICP-OES analysis. Thermogravimetric analysis (TGA) described its high thermal stability. Low catalyst loading, easy separation, reusability, and high
NBS as an efficient catalyst for the synthesis of 1,5-benzodiazepine derivatives under mild conditions
作者:Chun-Wei Kuo、Shivaji V. More、Ching-Fa Yao
DOI:10.1016/j.tetlet.2006.09.128
日期:2006.11
Various biologically important 1,5-benzodiazepinederivatives were efficiently synthesized in excellent yields using catalytic amounts of NBS (10 mol %). This inexpensive, nontoxic, and readily available catalyst efficiently catalyzes the condensation of several aromatic as well as aliphatic ketones with substituted o-phenylenediamines.
Formation of Benzodiazepines and Pyrazinylquinoxalines from
Aromatic and Heteroaromatic Ketones via Deoximation
作者:J.H. Song、S.M. Bae、E.J. Lee、J.H. Cho、D.I. Jung
DOI:10.14233/ajchem.2020.22639
日期:——
However, direct reactions of o-phenylenediamine with oximes (acetone oxime, acetophenone oxime, and benzophenone oxime) as ketone equivalents did not occur. In the course of present investigations, it is found that dichloroamine-T can be an efficient reagent for the conversion of oximes into the corresponding carbonyl compounds. As a part of a research program related to the synthetic study of pharmacologically
A unique gold(I)-catalyzed highly atom-economic synthesis of 1,5-benzodiazepines directly from o-phenylenediamines and alkynes has been achieved for the first time.
Derivatives of 2,3-dihydpo-1H-1,5-benzodiazepine based on substituted 1,2-phenylenediamines and acetylarenes