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Acergommala Max 에서 分離한 新Tannin Polygagallin의 化學構造

Structural Study on new Tanin, Polygagallin, from Acerginnala Max

약학회지 1962년 6권 1호 p.1 ~ 4
한구동,
소속 상세정보
한구동 (  ) - Seoul National University College of Pharmacy

Abstract


A new tannin, palygagallin, related to acertannin, is isolated from air-dried leaves of Acer ginnala Max. as prismatic cryitals with 1/2 H_(2)O per mole, m.p. 154-155° and [α]^(29)_(D)+43.79℃,
Polyganallin gives hexaxcetate, m.p. 164.5℃. [α]^(23)_(D)+42°, on treating with acetic anhydride and on tresting with diazomethane, gives trimethylether, m.p. 176℃, [α]^(22)_(D)+53.43, which yields triacetate, m/p/ 160.5℃, [α]^(22)_(D)+132.5°, on acetylation and is not attacked by periodate. On hydrolysis, trimethoxypolygagallin yield one mole of polygalitol and that of trimethoxygallic acid.
By the above results polygalallin has been established as 3-galloylpolygalitol.
(Received February 10, 1962)

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