South African Journal of Chemistry
versão On-line ISSN 1996-840X
versão impressa ISSN 0379-4350
ZIARANI, Ghodsi Mohammadi; BADIEI, Alireza; SHAHJAFARI, Fatemeh e POURJAFAR, Taiiebeh. A highly efficient solvent-free acetalization of aldehydes to 1,1-diacetates catalyzed by SiO2-Pr-SO3H. S.Afr.j.chem. (Online) [online]. 2012, vol.65, pp.10-13. ISSN 1996-840X.
1,1-Diacetates are prepared in excellent yields from aldehydes and acetic anhydride under solvent-free conditions at room temperature in short reaction times using catalytic amount of sulfonic acid functionalized silica (SiO2-Pr-SO3H) which could be easily handled and removed from the mixture of reaction.
Palavras-chave : 1,1-Diacetates; sulfonic acid functionalized silica; acetalization; solvent-free reaction; SiO2-Pr-SO3H.