Imidazolium Salts as Phase-Transfer Catalysts for the Dialkylation and Cycloalkylation of Active Methylene Compounds.

ChemInform ◽  
2005 ◽  
Vol 36 (20) ◽  
Author(s):  
Sengodagounder Muthusamy ◽  
Boopathy Gnanaprakasam
Keyword(s):  
Phase Transfer ◽  
Imidazolium Salts ◽  
Phase Transfer Catalysts ◽  
Active Methylene Compounds ◽  
Active Methylene

Environmentally benign nucleophilic substitution reaction of arylalkyl halides in water using CTAB as the inverse phase transfer catalyst

2019 ◽  
Vol 43 (40) ◽  
pp. 16041-16045 ◽  
Author(s):  
Atul K. Godha ◽  
Jayaraman Thiruvengadam ◽  
Viswanadhan Abhilash ◽  
Prajwal Balgi ◽  
A. V. Narayanareddy ◽  
...  
Keyword(s):  
Nucleophilic Substitution ◽  
Substitution Reaction ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Regioselective Synthesis ◽  
Environmentally Benign ◽  
Nucleophilic Substitution Reaction ◽  
Active Methylene Compounds ◽  
Active Methylene ◽  
Inverse Phase Transfer Catalyst

An environmentally benign, scalable and highly selective C-arylalkylation of active methylene compounds is developed using CTAB as the inverse phase transfer catalyst. The methodology is also applicable to the regioselective synthesis of N-aralkyl/alkyl 2-pyridones.

Activity of N,N′-dialkyl-2-trifluoromethylthioimidazolium salts as phase-transfer catalyst for the alkylation of active methylene compounds

RSC Advances ◽  
2016 ◽  
Vol 6 (49) ◽  
pp. 43159-43162 ◽  
Author(s):  
Satoshi Mizuta ◽  
Kanami Kitamura ◽  
Kodai Nishi ◽  
Ryo Hashimoto ◽  
Toshiya Usui ◽  
...  
Keyword(s):  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Design And Synthesis ◽  
Active Methylene Compounds ◽  
Active Methylene

The design and synthesis of N,N'-dialkyl-2-trifluoromethylthioimidazolium salts as novel catalysts for alkylations of active methylene compounds are described.

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