53911-68-5, 4-(4-Chlorophenyl)dihydro-2H-pyran-2,6(3H)-dione is a Tetrahydropyrans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
The solution of commercial 3,4-diaminobenzophenone (0.43 g) and 3-(4-chlorophenyl)glutaric anhydride (0.45 g) in 1,4-dioxane (3 ml) was stirred under reflux for 0.5 h. 4M HCl in 1,4-dioxane (3 ml) was added and the solution is further heated to reflux for 2.5 h. After cooling to rt the precipitate is collected by suction filtration and washed with 1,4-dioxane and diethyl ether. The crude is recrystallised from acetic acid to give 4-(5-benzoyl-2-benzimidazolyl)-3-(4-chlorophenyl)butanoic acid HCl (0.64 g) as light brown solid.1H-NMR (500 MHz, DMSO-d6)): delta (ppm)=2.74 (dd, J=16.2, 8.6 Hz, 1H), 2.85 (dd, J=16.2, 6.1 Hz, 1H), 3.50 (dd, J=15.0, 9.1 Hz, 1H), 3.60 (dd, J=15.0, 6.9 Hz, 1H), 3.91 (m, 1H), 7.32 (d, J=8.5 Hz, 2H), 7.39 (d, J=8.5 Hz, 2H), 7.58 (t, J=7.6 Hz, 2H), 7.70 (t, J=7.4 Hz, 1H), 7.75 (dd, J=8.3, 1.3 Hz, 2H), 7.83 (dd, J=8.6, 1.5 Hz, 1H), 7.86 (d, J=8.6 Hz, 1H), 8.01 (d, J=1.4 Hz, 1H).13C-NMR and DEPT (125 MHz, DMSO-d6): delta (ppm)=32.83 (CH2), 39.17 (CH), 39.67 (CH2), 113.91 (CH), 115.78 (CH), 126.51 (CH), 128.37 (2CH), 128.52 (2CH), 129.19 (2CH), 129.54 (2CH), 131.02 (C), 131.46 (C), 132.70 (CH), 133.79 (C), 133.95 (C), 136.90 (C), 140.75 (C), 154.47 (C), 172.14 (CO), 194.71 (CO)., 53911-68-5
53911-68-5 4-(4-Chlorophenyl)dihydro-2H-pyran-2,6(3H)-dione 104639, aTetrahydropyrans compound, is more and more widely used in various fields.
Reference£º
Patent; UNIVERSITAET DES SAARLANDES; US2012/46307; (2012); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics