ChemInform Abstract: Chiral Ammonium Aryloxides as Broensted Base Catalysts for the Henry Reaction of Nitroalkanes to Aromatic and Aliphatic Aldehydes.

ChemInform ◽  
2016 ◽  
Vol 47 (52) ◽  
Author(s):  
Jeremy Godemert ◽  
Sylvain Oudeyer ◽  
Vincent Levacher
Keyword(s):  
Henry Reaction ◽  
Aliphatic Aldehydes ◽  
Base Catalysts

scholarly journals Enantioselective synthesis of d-α-amino amides from aliphatic aldehydes

2015 ◽  
Vol 6 (4) ◽  
pp. 2590-2595 ◽  
Author(s):  
Kenneth E. Schwieter ◽  
Jeffrey N. Johnston
Keyword(s):  
Alkyl Chain ◽  
Phase Transfer ◽  
Enantioselective Synthesis ◽  
Henry Reaction ◽  
Aliphatic Aldehydes ◽  
Amino Amide ◽  
Amino Amides

Bromonitromethane is used in a phase transfer-catalysed enantioselective aza-Henry reaction, leading to d-amino amide bearing an alkyl chain.

Enantioselective Alkynylation of Aromatic and Aliphatic Aldehydes Catalyzed by Titanium(IV) Complex of D-Glucosamine-derived Sulfonamides

2014 ◽  
Vol 18 (9) ◽  
pp. 1218-1224 ◽  
Author(s):  
Tomasz Bauer ◽  
Maciej Majdecki ◽  
Slawomir Smolinskia ◽  
Janusz Jurczak
Keyword(s):  
Aliphatic Aldehydes

Heterogeneous System in Organic Synthesis: A Review

2020 ◽  
Vol 17 (6) ◽  
pp. 740-753
Author(s):  
Bishwajit Changmai ◽  
Gunindra Pathak ◽  
Jasha Momo H. Anal ◽  
Lalthazuala Rokhum
Keyword(s):  
Organic Synthesis ◽  
Heterogeneous System ◽  
Heterogeneous Catalysts ◽  
Solid Phase Synthesis ◽  
Solid Phase ◽  
Environmentally Friendly ◽  
Henry Reaction ◽  
Phase Synthesis ◽  
Recent Developments ◽  
Recovery And Reuse

Due to its inherent advantages such as easy recovery and reuse of the catalysts/ reagents, and environmentally friendly nature, the heterogeneous system has gain popularity in the realm of organic synthesis. In recent years, several chemically or biologically potent molecules are achieved through heterogeneous synthesis strategies. By recalling some of the classical fundamentals of the heterogeneous system in important organic synthesis, this mini-review outlines the recent developments in the applications heterogeneous catalysts and reagents; particularly in the solid phase synthesis, esterification and transesterification reactions to produce biodiesel, and Henry reaction.

Hydration of Aliphatic Aldehydes in Micellar Solutions

1988 ◽  
Vol 25-26 ◽  
pp. 335-338
Author(s):  
Wilhelm Knoche ◽  
Victoria R. Hanke ◽  
Edward Dutkiewicz
Keyword(s):  
Micellar Solutions ◽  
Aliphatic Aldehydes

Synthesis of 3‐Indole Substituted Sulfonyl 4 H ‐Chromenes Using Recyclable Cyclometrix Polyphosphazene‐Base Catalysts

2021 ◽  
Vol 6 (9) ◽  
pp. 2335-2342
Author(s):  
Sirigireddy Sudharsan Reddy ◽  
Anuraj Varyambath ◽  
Reddi Mohan Naidu Kalla ◽  
Wenliang Song ◽  
Il Kim
Keyword(s):  
Base Catalysts

scholarly journals Metal-free oxidative cross-coupling enabled practical synthesis of atropisomeric QUINOL and its derivatives

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Peng-Ying Jiang ◽  
Kai-Fang Fan ◽  
Shaoyu Li ◽  
Shao-Hua Xiang ◽  
Bin Tan
Keyword(s):  
Asymmetric Catalysis ◽  
Kinetic Resolution ◽  
Academic Research ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Industrial Applications ◽  
Lewis Base ◽  
Production Costs ◽  
Metal Free ◽  
Base Catalysts

AbstractAs an important platform molecule, atropisomeric QUINOL plays a crucial role in the development of chiral ligands and catalysts in asymmetric catalysis. However, efficient approaches towards QUINOL remain scarce, and the resulting high production costs greatly impede the related academic research as well as downstream industrial applications. Here we report a direct oxidative cross-coupling reaction between isoquinolines and 2-naphthols, providing a straightforward and scalable route to acquire the privileged QUINOL scaffolds in a metal-free manner. Moreover, a NHC-catalyzed kinetic resolution of QUINOL N-oxides with high selectivity factor is established to access two types of promising axially chiral Lewis base catalysts in optically pure forms. The utility of this methodology is further illustrated by facile transformations of the products into QUINAP, an iconic ligand in asymmetric catalysis.

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