2441-97-6Relevant articles and documents
Copper-catalyzed hydroallylation of allenes employing hydrosilanes and allyl chlorides
Fujihara, Tetsuaki,Yokota, Ken,Terao, Jun,Tsuji, Yasushi
, p. 7898 - 7900 (2017)
The hydroallylation of allenes was developed by employing a hydrosilane and allyl chlorides in the presence of a copper catalyst. The reaction provided (E)-1,5-dienes mainly in good to high yields.
Trifluoromethylthiolation of 1, 3- and 1, 4-cyclohexadienes
Rohrbaugh,Durst,Longo,Munavalli
, p. 2639 - 2650 (2002)
Treatment of 1, 3-cyclohexadiene with CF3SCl at -80 furnishes 15 compounds. All but the two dimerized adducts arise from the free radical catalyzed addition of CF3S and Cl radicals to carbon-carbon double bonds. One dimerized product
Guanidine–Copper Complex Catalyzed Allylic Borylation for the Enantioconvergent Synthesis of Tertiary Cyclic Allylboronates
Ge, Yicen,Cui, Xi-Yang,Tan, Siu Min,Jiang, Huan,Ren, Jingyun,Lee, Nicholas,Lee, Richmond,Tan, Choon-Hong
supporting information, p. 2382 - 2386 (2019/02/01)
An enantioconvergent synthesis of chiral cyclic allylboronates from racemic allylic bromides was achieved by using a guanidine–copper catalyst. The allylboronates were obtained with high γ/α regioselectivities (up to 99:1) and enantioselectivities (up to 99 % ee), and could be further transformed into diverse functionalized allylic compounds without erosion of optical purity. Experimental and DFT mechanistic studies support an SN2′ borylation process catalyzed by a monodentate guanidine–copper(I) complex that proceeds through a special direct enantioconvergent transformation mechanism.
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
supporting information, p. 1221 - 1225 (2017/08/15)
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.