A new benzodiazepine molecule and its interactions with diorganotin(IV)chlorides
摘要:
2-Methyl-2,4-di-thiophen-2',2 ''-yl-2,3-dihydro-1H-benzo[b][1,4]diazepine (L) has been synthesized through condensation of phenylene-1,2-diamine and 2-acetylthiophene, and its reactions with dialkyltin(IV)dichlorides have been studied. Two salts formulated as (LH)[R2SnCl3] (R = Et, 1; R = Me, 2) have been isolated. L and 1 were structurally characterized. The conformation of the benzodiazepine L, changes in 1 due to H-bonds formation. [Et2SnCl3](-) is one of the rare examples of five coordinated tin(IV) species and has distorted trigonal bipyramidal geometry. H-bonding interactions, in 1, lead to the formation of supramolecular helices. (C) 2014 Elsevier B.V. All rights reserved.
A Green Synthesis of 1,5-Benzodiazepines using Reusable-Heterogeneous Silica Sulfuric
Acid Catalyst under Solvent-Free Conditions and their Antileukemic Activity
作者:Kachigere B. Harsha、Chandagirikoppal V. Kavitha、Toreshettahally R. Swaroop、Shobith Rangappa、Kanchugarakoppal S. Rangappa
DOI:10.14233/ajchem.2021.23103
日期:——
ketones containg α-hydrogen atoms by means of simple cyclocondensation via sp3 C-H activation promoted by an efficient heterogeneous silica sulfuric acidcatalyst. Eco-friendliness, good yields, easy workup, reusable catalyst, short reaction times, high atom economy and solvent-freeconditions are the noteworthy features of this protocol. These benzodiazepines are chosen for the evaluation of antiproliferative
Silica gel-supported sulfuric acid catalyzed synthesis of 1,5-benzodiazepine derivatives
作者:D. Shobha、M. Adharvana Chari、K. Mukkanti、K. H. Ahn
DOI:10.1002/jhet.174
日期:2009.9
Silica gel-supported sulfuricacid has been found to be an efficient catalyst for the synthesis of 1,5-benzodiazepines from o-phenylenediamine and ketones in acetonitrile solvent. This method is simple, effective, and environmentally friendly and gives better yields. Compared to the classical reaction conditions, this new method consistently has the advantage of excellent yields (80–97%) and short
The facile syntheses of 2,3-dihydro-1H-1,5-benzodiazepines and their ribofuranosides
作者:Renuka Jain、Tripti Yadav、Manoj Kumar、Ashok K. Yadav
DOI:10.1002/jhet.365
日期:——
The facilesyntheses of 2,3‐dihydro‐1H‐benzodiazepines containing heterocyclic moieties and their ribofuranosides have been accomplished in ionic liquids at ambient temperature. The characterization of all these compounds has been done unambiguously by IR, 1H NMR, 13C NMR, GC‐MS spectroscopy, and elemental analysis. J. Heterocyclic Chem., (2010).
含有杂环基团的2,3-二氢-1H-苯并二氮杂及其核呋喃糖苷的简便合成已在环境温度下的离子液体中完成。通过IR,1 H NMR,13 C NMR,GC-MS光谱和元素分析明确地完成了所有这些化合物的表征。J.杂环化学。(2010)。
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.
Efficient TCT-catalyzed Synthesis of 1,5-Benzodiazepine Derivatives under Mild Conditions
作者:Chun-Wei Kuo、Chun-Chao Wang、Veerababurao Kavala、Ching-Fa Yao
DOI:10.3390/molecules13092313
日期:——
2,4,6-Trichloro-1,3,5-triazine (TCT) efficiently catalyzed the condensation reactions between 1,2-diamines and various enolizable ketones to afford 1,5-benzodiazepines in good to excellent yields. Simple and mild reaction conditions, the use of a cheap catalyst and easy workup and isolation are notable features of this method.