## Abstract For Abstract see ChemInform Abstract in Full Text.
3,4,5-Trifluorobenzeneboronic acid: a mild and versatile catalyst for the one-pot synthesis of acyl azides from carboxylic acids
β Scribed by R.H. Tale; K.M. Patil
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- French
- Weight
- 70 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
Acyloxyboron intermediates generated from carboxylic acids and 3,4,5-trifluorobenzeneboronic acid react with sodium azide to furnish the corresponding acyl azides in moderate to good yields.
π SIMILAR VOLUMES
An efficient use of triphosgene for the preparation of various acyl azides from carboxylic acids and sodium azide is described.
The aldol-crotonic condensation reactions of N-alkyl-and NH-piperidin-4-one derivatives with (hetero)aromatic aldehydes promoted by Lewis acids or bases were examined. This comparative study has revealed three effective catalytic systems based on Lewis acids, i.e., LiClO 4 and MgBr 2 (in the presenc
## Abstract magnified image 3,4βDihydropyrimidinβ2β(1__H__)βones and their thione analogues are synthesized from the condensation of aromatic aldehydes, Ξ²βdicarbonyl compound and urea or thiourea in presence of 5 mol% of oxalic acid in ethanolβwater (1:2; v/v) under mild reaction conditions. The y