ChemInform Abstract: Catalyst Free Michael Addition of 3-Methyl-2-pyrazolin-5-one to β-Nitrostyrenes “on Water”: A Green Protocol for Facile Synthesis of 4-(1-Aryl-2-nitroethyl)-3-methyl-1H-pyrazol-5-ol.

ChemInform ◽  
2014 ◽  
Vol 45 (10) ◽  
pp. no-no
Author(s):  
H. M. Meshram ◽  
Nadigama Satish Kumar ◽  
Jagadeesh Babu Nanubolu ◽  
L. Chandrasekhara Rao ◽  
N. Nageswara Rao
Keyword(s):  
Michael Addition ◽  
Facile Synthesis ◽  
Green Protocol ◽  
Catalyst Free

Catalyst free Michael addition of 3-methyl-2-pyrazolin-5-one to β-nitrostyrenes ‘on water’: a green protocol for facile synthesis of 4-(1-aryl-2-nitroethyl)-3-methyl-1H-pyrazol-5-ol

2013 ◽  
Vol 54 (45) ◽  
pp. 5941-5944 ◽  
Author(s):  
H.M. Meshram ◽  
Nandigama Satish Kumar ◽  
Jagadeesh Babu Nanubolu ◽  
L. Chandrasekhara Rao ◽  
N. Nageswara Rao
Keyword(s):  
Michael Addition ◽  
Facile Synthesis ◽  
Green Protocol ◽  
Catalyst Free

Catalyst-free tandem Michael addition/decarboxylation of (thio)coumarin-3-carboxylic acids with indoles: facile synthesis of indole-3-substituted 3,4-dihydro(thio)coumarins

2014 ◽  
Vol 12 (14) ◽  
pp. 2185-2188 ◽  
Author(s):  
Zhuzhou Shao ◽  
Lubin Xu ◽  
Liang Wang ◽  
Hongtao Wei ◽  
Jian Xiao
Keyword(s):  
Carboxylic Acids ◽  
Michael Addition ◽  
Facile Synthesis ◽  
Catalyst Free

The tandem Michael addition/decarboxylation of (thio)-coumarin-3-carboxylic acids with indoles gives biologically important indole-3-substituted dihydrocoumarins in good to excellent yields under catalyst-free conditions.

Catalyst-Free One-Pot Synthesis of Novel Heteroarylamine Substituted Furo[3,2-c]coumarins

Synlett ◽  
2018 ◽  
Vol 29 (12) ◽  
pp. 1589-1592 ◽  
Author(s):  
Abolfazl Olyaei ◽  
Mahnaz Saraei ◽  
Reyhaneh Khoeiniha
Keyword(s):  
Michael Addition ◽  
Aldol Condensation ◽  
Ring Closure ◽  
Dehydration Reaction ◽  
One Pot ◽  
Catalyst Free ◽  
One Pot Synthesis ◽  
Tandem Process ◽  
First Time

A high-yielding cyclocondensation of 4-hydroxycoumarin, phenylglyoxal monohydrate, and heteroarylamines proceeds without catalysis, which gives novel functionalized furo[3,2-c]coumarins and heteroarylamino alkylation of coumarin products in acetonitrile under reflux, is reported for the first time. This tandem process involves sequentially an aldol condensation, Michael addition, a ring closure, and dehydration reaction.

A catalyst-free approach to a novel imidazo [4,5-f][1,10] phenanthroline ligand and its corresponding ruthenium(ii) complex: insights into their applications in colorimetric anion sensing

2014 ◽  
Vol 38 (11) ◽  
pp. 5536-5543 ◽  
Author(s):  
Hamid Khanmohammadi ◽  
Khatereh Rezaeian
Keyword(s):  
Colorimetric Detection ◽  
Anion Sensing ◽  
Green Protocol ◽  
Catalyst Free ◽  
Phenanthroline Ligand

Novel imidazo[4,5-f][1,10]phenanthroline ligand and its corresponding Ru(ii) complex are synthesized from green protocol for colorimetric detection of anions in water.

Base and catalyst-free synthesis of nitrobenzodiazepines via a cascade N-nitroallylation-intramolecular aza-Michael addition involving o-phenylenediamines and nitroallylic acetates

Tetrahedron ◽  
2019 ◽  
Vol 75 (51) ◽  
pp. 130761 ◽  
Author(s):  
Divya K. Nair ◽  
Sudheesh T. Sivanandan ◽  
Pravin Kendrekar ◽  
Irishi N.N. Namboothiri
Keyword(s):  
Michael Addition ◽  
Catalyst Free

Facile Synthesis of 2-Arylindoles through Plancher-Type Rearrangement of 3-Alkyl-3-Arylindolenines

Synlett ◽  
2017 ◽  
Vol 28 (15) ◽  
pp. 1994-1999
Author(s):  
Santhosh Chittimalla ◽  
Chennakesavulu Bandi ◽  
Vinod Gadi ◽  
Siva Gunturu
Keyword(s):  
Michael Addition ◽  
Facile Synthesis ◽  
Type C ◽  
High Yields

3-Alkylindoles on reaction with a cyclohexa-2,4-dien-1-one catalyzed by BF3·OEt2 gave the corresponding 3-alkyl-3-arylindolenines in high yields through a tandem Michael addition/aromatization sequence. In the presence of HCl, these indolenine derivatives underwent a facile Plancher-type C-3 to C-2 aryl rearrangement to deliver the corresponding 2-arylindoles.

Facile Synthesis of Indolines by a Tandem Nitro-reduction Aza Michael Addition Reaction

Heterocycles ◽  
2013 ◽  
Vol 87 (10) ◽  
pp. 2023 ◽  
Author(s):  
Jason Guy Taylor ◽  
Wellington Martins Ventura ◽  
Luiz Guilherme Souza de Assis
Keyword(s):  
Michael Addition ◽  
Addition Reaction ◽  
Michael Addition Reaction ◽  
Facile Synthesis ◽  
Nitro Reduction
Sign in / Sign up

Export Citation Format

Share Document