STUDIES ON THE CONSTITUTION OF SHONANIC ACID, ONE OF THE TWO CHARACTERISTIC VOLATILE ACIDS FROM THE WOOD OF LIBOCEDRUS FORMOSANA, FLORIN. I. THE ISOLATION OF SHONANIC ACID AND ITS GENERAL PROPERTIES
作者:Nobutoshi Ichikawa
DOI:10.1246/bcsj.11.759
日期:1936.12
unknown acid in the volatile part from the wood of Libocedrus formosana, Florin, or “Shonan-Boku” is reported. (2) Shonanic acid is an unsaturated monobasic acid with a monocyclic structure of the formula C10H14O2, melting at 40–41°. Its amide melts at 116-117° and the anilide at 111-112°. (3) Shonanic acid can be converted into tetrahydroshonanic acid by absorption of four atoms of hydrogen when reduced
(1) 据报道,在台湾 Libocedrus、Florin 或“湘南木”的木材的挥发性部分中存在一种未知的酸。(2) Shonanic acid 是一种不饱和的一元酸,具有分子式为 C10H14O2 的单环结构,熔点 40-41°。它的酰胺在 116-117° 熔化,苯胺在 111-112° 熔化。(3) 湘南酸在催化还原时吸收四个氢原子可以转化为四氢湘酸,而它只吸收两个原子的溴,当用钠和乙醇还原时形成不饱和酸,即。得到二氢脂肪酸 (C10H16O2)。这些实验事实,再加上湘南酸的分子折射表现出显着的提升,得出的结论是其分子中存在共轭双键。(4) 虽然四氢芴酰胺在144°熔化,但证明该酸与二氢-α-樟脑酸(C10H18O2,酰胺熔点144°)有很大不同。(5)湘南酸异构化为异湘酸b...