中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-甲氧基-6-(2-苯基乙基)吡喃-2-酮 | dihydro-5,6-dehydrokawain | 3155-51-9 | C14H14O3 | 230.263 |
4-羟基-6-甲基-2-吡喃酮 | 4-hydroxy-6-methyl-2-pyron | 675-10-5 | C6H6O3 | 126.112 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 4-methoxy-6-(2-phenylethyl)-3-phenylthiomethyl-2H-pyran-2-one | 357156-71-9 | C21H20O3S | 352.454 |
Two mild and efficient strategies have been developed for the
N,N-dialkyl-N′-chlorosulfonylchloroformamidines 1 reacted regioselectively with 4-hydroxy-2-pyrone derivatives 2 to give 3-dialkylamino-1,1,8-trioxo-1H-1λ6-pyrano[3,4-e][1,4,3]oxathiazines 3. Dichloride 1b reacted regioselectively with 1,3-dimethylbarbituric acid 10 to give 3-diethylamino-5,7-dimethyl-1,1,6,8-tetraoxo-1H-1λ6-pyrimido[5,4-e][1,4,3]oxathiazine 11. The compounds 3 and 11 are derivatives of new ring systems.