中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 5,7-diacetoxy-2-methyl-3-phenyl-chromen-4-one | 35212-47-6 | C20H16O6 | 352.343 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 5-Hydroxy-2-methyl-3-phenyl-chromen-4-one | 55927-37-2 | C16H12O3 | 252.269 |
—— | 5-Hydroxy-7-methoxy-2-methyl-isoflavon | 55927-39-4 | C17H14O4 | 282.296 |
—— | 5,7-Dimethoxy-2-methyl-isoflavon | 82737-82-4 | C18H16O4 | 296.323 |
—— | 7-(4-Chlorobutoxy)-5-hydroxy-2-methyl-3-phenyl-4H-chromen-4-one | 165557-96-0 | C20H19ClO4 | 358.821 |
—— | 5-Hydroxy-7-mercapto-2-methyl-3-phenyl-chromen-4-one | 142751-55-1 | C16H12O3S | 284.335 |
—— | Dimethyl-thiocarbamic acid O-(5-hydroxy-2-methyl-4-oxo-3-phenyl-4H-chromen-7-yl) ester | 142751-48-2 | C19H17NO4S | 355.414 |
—— | Dimethyl-thiocarbamic acid S-(5-hydroxy-2-methyl-4-oxo-3-phenyl-4H-chromen-7-yl) ester | 142751-53-9 | C19H17NO4S | 355.414 |
—— | 7-benzothiazol-2-ylmethoxy-5-hydroxy-2-methyl-3-phenyl-chromen-4-one | 39232-50-3 | C24H17NO4S | 415.469 |
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.