Synthesis and stereochemical configuration of inherently chiral p-tert-butylcalix[4]arene carboxylic acids and their derivatives

2012 ◽  
Vol 77 (1-4) ◽  
pp. 175-181 ◽  
Author(s):  
Andrii O. Karpus ◽  
Oleksandr A. Yesypenko ◽  
Leonid P. Andronov ◽  
Vyacheslav I. Boyko ◽  
Zoia V. Voitenko ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Stereochemical Configuration ◽  
Inherently Chiral

Synthesis and stereochemical configuration of diastereomeric inherently chiral calixarenes with ABCH and ABCD type of substitution at the lower rim

2012 ◽  
Vol 48 (2) ◽  
pp. 284-292 ◽  
Author(s):  
O. A. Yesypenko ◽  
V. I. Boyko ◽  
O. V. Shishkin ◽  
S. V. Shishkina ◽  
V. V. Pirozhenko ◽  
...  
Keyword(s):  
Stereochemical Configuration ◽  
Inherently Chiral ◽  
Inherently Chiral Calixarenes

Synthesis, optical resolution and absolute configuration of inherently chiral calixarene carboxylic acids

Tetrahedron ◽  
2009 ◽  
Vol 65 (34) ◽  
pp. 7085-7091 ◽  
Author(s):  
M.A. Kliachyna ◽  
O.A. Yesypenko ◽  
V.V. Pirozhenko ◽  
S.V. Shishkina ◽  
O.V. Shishkin ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Absolute Configuration ◽  
Optical Resolution ◽  
Inherently Chiral

Stereoselective synthesis of enantiomerically pure inherently chiral p-tert-butylcalix[4]arene carboxylic acids

2012 ◽  
Vol 23 (17) ◽  
pp. 1243-1250 ◽  
Author(s):  
Andrii O. Karpus ◽  
Oleksandr A. Yesypenko ◽  
Leonid P. Andronov ◽  
Vyacheslav I. Boyko ◽  
Sergei G. Garasevich ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Stereoselective Synthesis ◽  
Enantiomerically Pure ◽  
Inherently Chiral

A convenient preparative method for 1,4-diketones from carboxylic acids

1977 ◽  
Vol 27 (1) ◽  
pp. 117-120
Author(s):  
Shoji Watanabe ◽  
Tsutomu Fujita ◽  
Kyoichi Suga ◽  
Haruhiko Abe
Keyword(s):  
Carboxylic Acids ◽  
Preparative Method

Probing The Resolution of 2-Alkoxy and 2-Aryloxy Carboxylic Acids

2006 ◽  
Author(s):  
Jason Eames ◽  
Ewan Boyd ◽  
Sameer Chavda
Keyword(s):  
Carboxylic Acids

Ligand-Enabled γ-C(sp3)–H Olefination of Free Carboxylic Acids

2020 ◽  
Author(s):  
Kiron Kumar Ghosh ◽  
Alexander Uttry ◽  
Francesca Ghiringhelli ◽  
Arup Mondal ◽  
Manuel van Gemmeren
Keyword(s):  
Reaction Mechanism ◽  
Carboxylic Acids ◽  
Michael Addition ◽  
Kinetic Studies ◽  
Wide Range ◽  
Palladium Catalyzed

We report the ligand enabled C(sp3)–H activation/olefination of free carboxylic acids in the γ-position. Through an intramolecular Michael-addition, δ-lactones are obtained as products. Two distinct ligand classes are identified that enable the challenging palladium-catalyzed activation of free carboxylic acids in the γ-position. The developed protocol features a wide range of acid substrates and olefin reaction partners and is shown to be applicable on a preparatively useful scale. Insights into the underlying reaction mechanism obtained through kinetic studies are reported.<br>

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