Chlorohydrination of allyl chloride with HCl and H2O2 catalyzed by hollow titanium silicate zeolite to produce dichloropropanol. Issue 5 (6th January 2017)

• Record Type: Journal Article
• Authors: Peng, Xinxin; Xia, Changjiu; Lin, Min; Yuan, Hui; Zhu, Bin; Zhang, Yao; Wang, Baorong; Shu, Xingtian
• Is Part Of: Green chemistry. Volume 19:Issue 5(2017)
• Page Start: 1221
• Page End: 1225
• Publication Date: 2017-01-06
• Subjects: Environmental chemistry -- Industrial applications -- Periodicals; Environmental management -- Periodicals; 660
• DOI: 10.1039/c6gc03005j
• Languages: English
• ISSNs: 1463-9262

Abstract

Abstract : A novel chlorohydrination process of allyl chloride with HCl and H2 O2 catalyzed by hollow titanium silicate zeolite has been developed, overcoming the significant drawbacks of traditional Cl2 -based route. Abstract : 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 H2 O2 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 Brønsted acidity of HCl that promotes the epoxidation of allyl chloride and the ring opening of the epoxy groups.