Copper‐Catalyzed Decarboxylative Cycloaddition of Alkynyl Carboxylic Acids and Sodium Azide with Epoxides and Ethers

2021 ◽  
Vol 6 (36) ◽  
pp. 9632-9636
Author(s):  
Danupat Beukeaw ◽  
Sirilata Yotphan
Keyword(s):  
Carboxylic Acids ◽  
Sodium Azide

scholarly journals Ferric Hydrogensulfate As a Reusable Heterogeneous Catalyst for the Synthesis of 5-Substituted-1H-Tetrazoles and Amides

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Hossein Eshghi ◽  
Seyed Mohammad Seyedi ◽  
Elaheh Rahimi Zarei
Keyword(s):  
Heterogeneous Catalyst ◽  
Carboxylic Acids ◽  
Sodium Azide ◽  
Aromatic Nitriles ◽  
Simple Filtration ◽  
High Yields ◽  
Aqueous Conditions ◽  
Hydrolysis Of ◽  
Substituted 1

Ferric hydrogensulfate catalyzed the synthesis of 5-substituted 1H-tetrazoles via [2 + 3] cycloaddition of nitriles and sodium azide. This method has the advantages of high yields, simple methodology, and easy workup. The catalyst can be recovered by simple filtration and reused delivering good yields. Also, ferric hydrogensulfate catalyzed the hydrolysis of nitriles to primary amides under aqueous conditions. Various aliphatic and aromatic nitriles converted to the corresponding amides in good yields without any contamination with carboxylic acids.

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
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