[EN] DEHYDRATIVE CYCLIZATION OF PENTITOLS USING WATER-TOLERANT LEWIS ACID CATALYSTS UNDER MILD CONDITIONS AND DERIVATIVES<br/>[FR] CYCLISATION PAR DÉSHYDRATATION DE PENTITOLS À L'AIDE DE CATALYSEURS DE TYPE ACIDE DE LEWIS TOLÉRANTS À L'EAU DANS DES CONDITIONS DOUCES, ET DÉRIVÉS CORRESPONDANTS
申请人:ARCHER DANIELS MIDLAND CO
公开号:WO2017030684A1
公开(公告)日:2017-02-23
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。