61363-56-2, 2H-Pyran-3,5(4H,6H)-dione is a Tetrahydropyrans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
61363-56-2, EXAMPLE 27 4-(3-bromo-4-fluorophenyl)-1-ethyl-1,2,4,9-tetrahydropyrano[3,4-b]pyrazolo[4,3-e]pyridine-3,5(6H,8H)-dione 2H-Pyran-3,5(4H,6H)-dione (0.11 g, 1 mmol), 3-bromo-4-fluorebenzaldehyde (0.2 g, 1 mmol), and 5-amino-1-ethyl-1,2-dihydropyrazol-3-one (0.12g, 1 mmol) were processed as described in Example 26C to provide 0.1 g of the title compound. 1H NMR (300 MHz, DMSO-d6) delta 1.2 (t, 3H), 3.82 (q,2H), 3.99 (s, 2H), 4.52 (q, 2H), 4.96 (s, 1H), 7.18 (m, 1H), 7.21 (t, 1H), 7.39 (dd, 1H), 9.65 (bs, 1H), 10.52 (s, 1H); MS (ESI) m/z 406 (MH)-; Anal. calcd for C17H15N3BrFO3.0.5 C2H5OH: C, 50.13;H, 4.21; N, 9.74. Found: C, 49.94;H, 3.96; N, 9.21.
61363-56-2 2H-Pyran-3,5(4H,6H)-dione 325287, aTetrahydropyrans compound, is more and more widely used in various fields.
Reference£º
Patent; Drizin, Irene; Altenbach, Robert J.; Carroll, William A.; US2002/7059; (2002); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics