Silica supported orthophosphoric acid (H3PO4. SiO2): a green, heterogeneous catalyst for solvent-free oxathioacetalization of aldehydes

Green Chemistry Letters and Reviews

Anand D. Sawant¹ 

关键词: H3PO4. SiO2;    oxathioacetalization;    orthophosphoric acid;    chemoselective;    1-3-oxathiolane;   

DOI  :  10.1080/17518253.2010.544682

学科分类：化学（综合）

来源: Taylor & Francis

【 摘 要 】

A silica supported orthophosphoric acid catalyst (H3PO4. SiO2) was prepared by stirring silica gel (100–200mesh) with orthophosphoric acid in chloroform at room temperature. The catalyst was characterized by scanning electron microscopy (SEM) and energy dispersion analytical X-ray (EDX). It demonstrated excellent activity, chemoselectivity, and recyclability for oxathioacetalization of aldehydes.

【 授权许可】

Unknown