Water-Tolerant and Reusable Catalysts for Direct Ester Condensation between Equimolar Amounts of Carboxylic Acids and Alcohols

2004 ◽  
Vol 346 (11) ◽  
pp. 1275-1279 ◽  
Author(s):  
Masaya Nakayama ◽  
Atsushi Sato ◽  
Kazuaki Ishihara ◽  
Hisashi Yamamoto
Keyword(s):  
Carboxylic Acids ◽  
Ester Condensation

Direct Ester Condensation from a 1:1 Mixture of Carboxylic Acids and Alcohols Catalyzed by Hafnium(IV) or Zirconium(IV) Salts.

ChemInform ◽  
2003 ◽  
Vol 34 (8) ◽  
Author(s):  
Kazuaki Ishihara ◽  
Masaya Nakayama ◽  
Suguru Ohara ◽  
Hisashi Yamamoto
Keyword(s):  
Carboxylic Acids ◽  
Ester Condensation

Efficient direct ester condensation between equimolar amounts of carboxylic acids and alcohols catalyzed by trifluoromethanesulfonic acid (TfOH) in Solkane365mfc

RSC Advances ◽  
2013 ◽  
Vol 3 (12) ◽  
pp. 3848 ◽  
Author(s):  
Xiu-Hua Xu ◽  
Ayaka Azuma ◽  
Misaki Taniguchi ◽  
Etsuko Tokunaga ◽  
Norio Shibata
Keyword(s):  
Carboxylic Acids ◽  
Trifluoromethanesulfonic Acid ◽  
Ester Condensation

Direct ester condensation from a 1:1 mixture of carboxylic acids and alcohols catalyzed by hafnium(IV) or zirconium(IV) salts

Tetrahedron ◽  
2002 ◽  
Vol 58 (41) ◽  
pp. 8179-8188 ◽  
Author(s):  
Kazuaki Ishihara ◽  
Masaya Nakayama ◽  
Suguru Ohara ◽  
Hisashi Yamamoto
Keyword(s):  
Carboxylic Acids ◽  
Ester Condensation

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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