Metal-Dependent Stereochemistry of C—C Bond Formation under the Asymmetric Phase Transfer Catalysis by Chiral Salen Complexes.

ChemInform ◽  
2003 ◽  
Vol 34 (19) ◽  
Author(s):  
Yu. N. Belokon ◽  
A. A. Petrosyan ◽  
V. I. Maleev ◽  
T. F. Savel'eva ◽  
A. V. Grachev ◽  
...  
Keyword(s):  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Bond Formation ◽  
Salen Complexes ◽  
Chiral Salen Complexes

scholarly journals Vinylogous and Arylogous Stereoselective Base-Promoted Phase-Transfer Catalysis

Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1545
Author(s):  
Assunta D’Amato ◽  
Giorgio Della Sala
Keyword(s):  
Organic Synthesis ◽  
Phase Transfer Catalysis ◽  
Negative Charge ◽  
Phase Transfer ◽  
Bond Formation ◽  
Metal Catalysis ◽  
Carbon Nucleophiles ◽  
Unsaturated Compounds

Vinylogous enolate and enolate-type carbanions, generated by deprotonation of α,β-unsaturated compounds and characterized by delocalization of the negative charge over two or more carbon atoms, are extensively used in organic synthesis, enabling functionalization and C–C bond formation at remote positions. Similarly, reactions with electrophiles at benzylic and heterobenzylic position are performed through generation of arylogous and heteroarylogous enolate-type nucleophiles. Although widely exploited in metal-catalysis and organocatalysis, it is only in recent years that the vinylogy and arylogy principles have been translated fruitfully in phase-transfer catalyzed processes. This review provides an overview of the methods developed to date, involving vinylogous and (hetero)arylogous carbon nucleophiles under phase-transfer catalytic conditions, highlighting main mechanistic aspects.

A rapid and highly enantioselective C–11C bond formation of l-[11C]phenylalanine via chiral phase-transfer catalysis

2017 ◽  
Vol 15 (3) ◽  
pp. 570-575 ◽  
Author(s):  
Aleksandra Pekošak ◽  
Ulrike Filp ◽  
Janja Škrinjar ◽  
Alex J. Poot ◽  
Albert D. Windhorst
Keyword(s):  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Bond Formation ◽  
Chiral Phase

Multistep asymmetric phase-transfer catalyzed carbon-11 benzylation for the enantioselective radiolabeling of l- and d-[11C]phenylalanine.

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.

scholarly journals Synthesis of sec-Butyl Disulfide by Phase Transfer Catalysis

2015 ◽  
Vol 27 (9) ◽  
pp. 3208-3210
Author(s):  
Xinqi Liu ◽  
Jia Wang ◽  
Songfang Zhao ◽  
Guoqin Hu
Keyword(s):  
Phase Transfer Catalysis ◽  
Phase Transfer

ChemInform Abstract: Methylation of Phenol and Its Derivatives with Dimethyl Sulfate Under Phase-Transfer Catalysis.

ChemInform ◽  
2010 ◽  
Vol 24 (34) ◽  
pp. no-no
Author(s):  
T. N. VASILEVSKAYA ◽  
E. P. PLOTNIKOVA ◽  
V. S. KOBRIN
Keyword(s):  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Dimethyl Sulfate
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