(+/-)-MELLEIN 化学特性,用途語,生産方法
純化方法
Purify it by recrystallisation from H2O or aqueous EtOH. It has UV: at 247 and 314nm. [Arakawa et al. Justusmax Liebigs Ann Chem 728 152 1969, Blair & Newbold Chem Ind (London) 93 1955, J Chem Soc 2871 1955.] The methyl ether has m 66-67o and UV: 242nm ( 7,400) and 305nm ( 4,600). R(-)-Mellein has m56o(aqueous Me2CO), [] D -102.5o (c 1, CHCl3) and R(+)-mellein has m 56-57o(hexane), [] D +102o (c 1, CHCl3) or [] 25 +88o (c 1, MeOH). [Beilstein 18 III/IV 188, 18/1 V 274.]
(+/-)-MELLEIN 上流と下流の製品情報
原材料
準備製品