26601-20-7Relevant academic research and scientific papers
Chlorohydrination of allyl chloride with HCl and H2O2 catalyzed by hollow titanium silicate zeolite to produce dichloropropanol
Peng, Xinxin,Xia, Changjiu,Lin, Min,Yuan, Hui,Zhu, Bin,Zhang, Yao,Wang, Baorong,Shu, Xingtian
, p. 1221 - 1225 (2017)
Overall, over 95% of epichlorohydrin is industrially manufactured via the chlorohydrination route with hazardous Cl2 as a reagent, which brings serious operation and pollution problems. Herein, we describe a novel Cl2-free process for the synthesis of dichloropropanols from allyl chloride with H2O2 and HCl catalyzed by hollow titanium silicate zeolite under mild conditions. A high conversion and overall dichloropropanol selectivity exceeding 95% are simultaneously achieved, and the heterogeneous catalyst is highly stable and amenable for reuse. Comprehensive experimental and spectroscopic data suggest that the Lewis acidity of the framework Ti species has a synergistic effect with the Br?nsted acidity of HCl that promotes the epoxidation of allyl chloride and the ring opening of the epoxy groups.
