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
A mixture of 3-(4-chlorophenyl)glutaric anhydride (0.5 g) and commercial 2-amino- 4-chlorothiophenol (0.37 g) is dissolved in boiling dichloromethane (3 ml). The solution is stirred overnight at rt. The precipitate is isolated by suction filtration, washed with dichloromethane, and dried in vacuo. The crude product is recrystallised from acetone to give 0.3 g of 4-(5-chloro-2-benzothiazolyl)-3-(4- chlorophenyl)butanoic acid as colourless crystals.1H-NMR (500 MHz, DMSOd6): delta (ppm) = 2.08 (S, 3H), 2.65 (dd, J = 16.0, 8.6 Hz,IH), 2.79 (dd, J = 16.0, 6.2 Hz, IH), 3.45 (dd, J = 14.8, 9.3 Hz, IH), 3.53 (dd, J = 14.8, 5.9 Hz, IH), 3.63 (m, IH), 7.29 (d, J = 8.7 Hz, 2H), 7.33 (d, J = 8.7 Hz, 2H),7.42 (dd, J = 8.6, 2.0 Hz, IH), 7.99 (d, J = 2.0 Hz, IH), 8.02 (d, J = 8.6 Hz, IH),12.17 (br s, IH).13C-NMR and DEPT (125 MHz, DMSOd6) : delta (ppm) = 39.27 (CH2), 40.02 (CH2),41.17 (CH), 121.59 (CH), 123.42 (CH), 124.84 (CH), 128.11 (2 CH), 129.54 (2 CH), 130.70 (C), 131.12 (C), 133.35 (C), 141.45 (C), 153.38 (C), 171.82 (C),172.42 (CO).MS ( + ESI): m/z = 366 (M + H)., 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; ENGEL, Matthias; FROeHNER, Wolfgang; STROBA, Adriane; BIONDI, Ricardo M.; WO2010/43711; (2010); A1;,
Tetrahydropyran – Wikipedia
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