Mukaiyama Reagent as an Efficient Activating Agent for Anchoring Carboxylic Acids to Hydroxymethylated Resins

2008 ◽  
Vol 27 (7) ◽  
pp. 823-825 ◽  
Author(s):  
Dora B. Boggián ◽  
Ernesto G. Mata
Keyword(s):  
Carboxylic Acids ◽  
Activating Agent

Direct transformation of carboxylic acids to thiol esters induced by phenyl dichlorophosphate

1980 ◽  
Vol 58 (23) ◽  
pp. 2645-2648 ◽  
Author(s):  
Hsing-Jang Liu ◽  
Subramaniam Iyer Sabesan
Keyword(s):  
Carboxylic Acids ◽  
Direct Transformation ◽  
Thiol Esters ◽  
Activating Agent

The condensation of carboxylic acids and thiols is greatly facilitated by the use of phenyl dichlorophosphate as an activating agent giving thiol esters in good yields.

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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