“depside”的英文意思_释义_用法

单词

depside

释义

depside Chem.|ˈdɛpsaɪd|
[ad. G. depsid (Fischer & Freudenberg 1910, in Justus Liebig's Ann. d. Chem. CCCLXXII. 35), f. Gr. δέψ-ειν to knead (see quot. 1910) + -ide.]
Any of a group of organic compounds found principally in lichens (see quot. 1956).
1910Jrnl. Chem. Soc. XCVIII. i. 266 It will no doubt be possible to prepare, by similar means, a large number of analogous substances from other hydroxybenzoic acids, and since many undoubtedly occur in nature, as, for example, tannin, it is considered advisable to classify them under the collective name depside (δέψειν tan).1935[see next].1956E. H. Rodd Chem. Carbon Compounds III. xii. 784 Depsides are substances derived from two or more molecules of phenolcarboxylic acids by esterification of a carboxyl group of one molecule..with a hydroxyl group of a second.1959[see next].1967M. E. Hale Biol. Lichens viii. 111 The depsides..make up the largest group of lichen substances.

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