中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
6,7-二羟基-2,2-二甲基-2,3-二氢-4H-苯并吡喃-4-酮 | 6,7-dihydroxy-2,2-dimethyl-4-chromanone | 76348-95-3 | C11H12O4 | 208.214 |
—— | 6-methoxy-7-methoxymethoxy-2,2-dimethyl-4-chromanone | 158046-41-4 | C14H18O5 | 266.294 |
—— | 6-hydroxy-7-methoxymethyloxy-2,2-dimethyl-4-chromanone | 158046-39-0 | C13H16O5 | 252.267 |
2,4-二羟基-5-甲氧基苯乙酮 | 2,4-Dihydroxy-5-methoxy-acetophenon | 7298-21-7 | C9H10O4 | 182.176 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 6-methoxy-2,2-dimethylchroman-4-one | 13229-59-9 | C12H14O3 | 206.241 |
—— | Dimethyl-thiocarbamic acid O-(6-methoxy-2,2-dimethyl-4-oxo-chroman-7-yl) ester | 158046-42-5 | C15H19NO4S | 309.386 |
—— | (6-methoxy-2,2-dimethyl-4-oxo-3H-chromen-7-yl) N,N-diethylcarbamimidate | 159151-21-0 | C17H24N2O4 | 320.389 |
—— | 7-Mercapto-6-methoxy-2,2-dimethyl-chroman-4-one | 158046-45-8 | C12H14O3S | 238.307 |
—— | 6-Methoxy-2,2-dimethyl-7-methylsulfanyl-chroman-4-one | 158046-47-0 | C13H16O3S | 252.334 |
—— | 7-Ethylsulfanyl-6-methoxy-2,2-dimethyl-chroman-4-one | 158046-48-1 | C14H18O3S | 266.361 |
—— | Dimethyl-thiocarbamic acid S-(6-methoxy-2,2-dimethyl-4-oxo-chroman-7-yl) ester | 158046-43-6 | C15H19NO4S | 309.386 |
An efficient procedure to deoxygenate hydroxy substituted flavonoids, isoflavonoids and related compounds via their trifluoromethanesulfonates is presented. Their reduction with formic acid in the presence of a catalytic amount of palladium acetate, triethylamine and 1,3-bis(diphenylphosphanyl) propane (dppp) in DMF results in their des-hydroxy derivatives without affecting other functional groups.