Cyclopropanation of Phenyl Styryl Sulfones with Phenacylsulfonium Ylides Under Phase-Transfer Catalysis

1998 ◽  
Vol 63 (6) ◽  
pp. 835-841 ◽  
Author(s):  
Adivireddi Padmaja ◽  
Kalluru Ramachandra Reddy ◽  
Venkatapuram Padmavathi ◽  
Dandu Bhaskar Reddy
Keyword(s):  
Spectral Data ◽  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Direct Addition ◽  
Substituted 1

Cyclopropanation of substituted phenyl styryl sulfones 1 with dimethylsulfonium phenacylides was carried out by two different methods (under PTC catalysis with in situ generation of the ylides and by direct addition of ylides) to obtain a series of substituted 1-benzenesulfonyl-2-benzoyl-3-phenylcyclopropanes 2. The PTC method was found to be more facile and efficient. The spectral data of cyclopropanes 2 are discussed.

Thermoregulated phase transfer catalysis in aqueous/organic biphasic system: facile and highly efficient ATRP catalyst separation and recycling in situ using typical alkyl halide as initiator

2015 ◽  
Vol 6 (35) ◽  
pp. 6394-6401 ◽  
Author(s):  
Xiaowu Jiang ◽  
Yanjing Luo ◽  
Zhen Li ◽  
Lifen Zhang ◽  
Zhenping Cheng ◽  
...  
Keyword(s):  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Alkyl Halide ◽  
Biphasic System ◽  
Metal Catalyst ◽  
Highly Efficient ◽  
Important Development ◽  
Catalyst Separation ◽  
First Time

An important development of TRPTC-based ICAR ATRP for metal catalyst separation and recycling in an aqueous/organic biphasic system was achieved with alkyl halide as the initiator for the first time.

Synthesis of Some New Bis[1-(2-aroyl-3-aryl)cyclopropylcarbonyl]benzenes and Pyridines under Phase Transfer Catalysis (PTC) Method

1993 ◽  
Vol 58 (6) ◽  
pp. 1437-1444 ◽  
Author(s):  
Dandu Bhaskar Reddy ◽  
Biradavolu Seenaiah ◽  
Adivireddi Padmaja ◽  
Pallela Venkata Ramana Reddy
Keyword(s):  
Spectral Data ◽  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
The Other

Some new bis[1-(2-aroyl-3-aryl)cyclopropylcarbonyl]benzenes and pyridines IV - VI have been prepared by the cycloaddition of dimethylsulfonium phenacylide to 1,1'-(1,3-, 1,4-phenylene, and 2,6-pyridylene)-bis(3-aryl-2-propen-1-ones) I - III by adopting two different methods. The advantages of the PTC method over the other have been discussed. The structures of the compound have been confirmed by spectral data.

ChemInform Abstract: Alkylation of Aryl and Hetaryl Ketoximes with Alkyl Iodides Prepared in situ from Alkyl Chlorides under Phase Transfer Catalysis Conditions.

ChemInform ◽  
2010 ◽  
Vol 29 (43) ◽  
pp. no-no
Author(s):  
E. ABELE ◽  
R. ABELE ◽  
K. RUBINA ◽  
J. POPELIS ◽  
I. SLEIKSA ◽  
...  
Keyword(s):  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Alkyl Iodides

The Role of Phase Transfer Catalysis in the Microwave-Assisted N-Benzylation of Amides, Imides and N-Heterocycles

2009 ◽  
Vol 6 (7) ◽  
pp. 529-534 ◽  
Author(s):  
Istvan Greiner ◽  
Fanni Sypaseuth ◽  
Alajos Grun ◽  
Eva Karsai ◽  
Gyorgy Keglevich
Keyword(s):  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Microwave Assisted

Green Application of Phase-Transfer Catalysis in Oxidation: A Comprehensive Review

2020 ◽  
Vol 17 (4) ◽  
pp. 405-411
Author(s):  
Chuan-Hui Wang ◽  
Chen-Fu Liu ◽  
Guo-Wu Rao
Keyword(s):  
Organic Chemistry ◽  
Green Chemistry ◽  
Oxidation Reaction ◽  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Important Application ◽  
Oxidation Reactions ◽  
Comprehensive Review ◽  
Phase Transfer Catalysts ◽  
Onium Salts

Oxidation reactions have emerged as one of the most versatile tools in organic chemistry. Various onium salts such as ammonium, phosphonium, arsonium, bismuthonium, tellurium have been used as phase transfer catalysts in many oxidation reactions. Certainly, considerable catalysts have been widely used in Phase-Transfer Catalysis (PTC). This review focuses on the application of PTC in various oxidation reaction. Furthermore, PTC also conforms to the concept of “Green Chemistry”. <p></p> • Oxidation has become one of the most widely used tools in organic chemistry and phase transfer catalysts has been widely used in oxidation. <p></p> • The application of phase transfer catalysts in oxidation reaction will be summarized. <p></p> • Phase transfer catalysts have important application in various oxidation reaction.

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