Novel three-component reaction of perimidines with 1,3,5-triazines and carbonyl compounds in polyphosphoric acid. an efficient method for peri-annelation of a carbocyclic and pyridine ring

2012 ◽  
Vol 48 (4) ◽  
pp. 634-641 ◽  
Author(s):  
A. V. Aksenov ◽  
N. A. Aksenov ◽  
A. S. Lyakhovnenko ◽  
A. B. Kumshaeva ◽  
I. V. Aksenova
Keyword(s):  
Efficient Method ◽  
Carbonyl Compounds ◽  
Pyridine Ring ◽  
Polyphosphoric Acid ◽  
Three Component Reaction ◽  
Peri Annelation

Novel One-pot Synthesis of Pyranocarbazole Derivatives via an Isocyanide-based Three-component Reaction

2020 ◽  
Vol 17 ◽  
Author(s):  
Visarapu Malathi ◽  
Pedavenkatagari Narayana Reddy ◽  
Pannala Padmaja
Keyword(s):  
Efficient Method ◽  
Atom Economy ◽  
Reaction Conditions ◽  
One Pot ◽  
Catalyst Free ◽  
One Pot Synthesis ◽  
Three Component Reaction ◽  
High Yields

Abstract:: An efficient method has been developed for the synthesis of new pyrano[3,2-c] and pyrano[3,2-a]carbazole de-rivatives via a three component reaction of 4-hydroxycarbazole or 2-hydroxycarbazole, isocyanides, and dialkylacetylenedi-carboxylates. Noteworthy features of this protocol include mild reaction conditions, catalyst-free, high atom-economy and high yields.

scholarly journals N-acylation of amides through internal nucleophilic catalysis

2020 ◽  
pp. 174751982092575
Author(s):  
Meng Yao ◽  
Xia Chen ◽  
Yuling Lu ◽  
Zhenhua Guan ◽  
Zengwei Luo ◽  
...  
Keyword(s):  
Natural Products ◽  
Efficient Method ◽  
Pyridine Ring ◽  
Environmentally Friendly ◽  
Biologically Active ◽  
Active Materials ◽  
Nucleophilic Catalysis

An efficient method for N-acylation of amides is described using a pyridine ring as the internal nucleophilic catalyst to give imides in moderate to excellent yields. The methodology provides a facile, air insensitive, and environmentally friendly route to form diversified imide scaffolds, which exist widely in natural products and biologically active materials.

Three-component 3-(phosphoryl)methylindole synthesis from indoles, H-phosphine oxides and carbonyl compounds under metal-free conditions

2019 ◽  
Vol 21 (4) ◽  
pp. 792-797 ◽  
Author(s):  
Jiaoting Pan ◽  
Runmin Zhao ◽  
Jiami Guo ◽  
Dumei Ma ◽  
Ying Xia ◽  
...  
Keyword(s):  
Carbonyl Compounds ◽  
Indole Derivatives ◽  
Phosphine Oxides ◽  
One Pot ◽  
Metal Free ◽  
Three Component Reaction ◽  
Acid Catalyzed

The first facile and efficient acid-catalyzed three-component reaction of indoles, H-phosphine oxides and carbonyl compounds has been developed, providing a general, one-pot approach to structurally diverse C3-alkylated indole derivatives.

scholarly journals Deoximation of Ketoximes to Ketones with Ammonium Chlorochromate/Montmorillonite K10 in Dichloromethane

2009 ◽  
Vol 6 (1) ◽  
pp. 156-160 ◽  
Author(s):  
Ji-Tai Li ◽  
Xian-Tao Meng
Keyword(s):  
Efficient Method ◽  
Carbonyl Compounds ◽  
Room Temperature ◽  
Oxidative Cleavage ◽  
Montmorillonite K10

A convenient, mild and efficient method for oxidative cleavage of ketoximes to their parent carbonyl compounds with ammonium chlorochromate (ACC) / montmorillonite K10 in dichloromethane at room temperature is described

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