A catalytic process for the dehydrative cyclization of pentitols to synthesize anhydropentitols is described. Water-tolerant Lewis acids (in particular, metal triflates) are employed as catalysts to improve conversion and anhydropentitol selectivity at ultra-low catalyst loadings. The process can produce cyclic ether triols in high yields with concurrent complete pentitol conversion.
描述了一种用于将戊
醇类化合物进行脱
水缩合反应合成无
水戊
醇类化合物的催化过程。在超低催化剂负载下,采用耐
水性
路易斯酸(特别是
金属
三氟甲磺酸盐)作为催化剂,以提高转化率和无
水戊
醇类化合物的选择性。该过程可以高产率地产生环氧三元醇,同时实现完全的戊
醇类化合物转化。