请输入您要查询的英文单词:

 

单词 phthalimide
释义

phthalimiden.

Brit. /ˈ(f)θalᵻmʌɪd/, U.S. /ˈθæləˌmaɪd/
Origin: Formed within English, by compounding. Etymons: phthalic adj., imide n.
Etymology: < phthal- (in phthalic adj.) + imide n., after French phtalimide (A. Laurent 1842, in Comptes rendus hebd. de l'Acad. des Sci. 14 821), shortened < naphtalimide naphthalimide n. Compare German Phtalimid (1888 or earlier).With the shortening of French naphtalimide compare phthalic adj. and the discussion at that entry.
Chemistry.
A bicyclic compound, C6H4(CO)2NH, which is the imide analogue of phthalic anhydride, obtained by reacting the latter with ammonium hydroxide or ammonium carbonate and used in the manufacture of drugs (including thalidomide), pesticides, etc.
ΚΠ
1857 W. A. Miller Elements Chem. III. 231 Phthalimide, HN.C16H4O4.
1898 Science 30 Sept. 420/2 Pairing of anions does not take place in the electrolysis of compounds like acetamide, benzamide, succinimide and phthalimide.
1925 Proc. Royal Soc. A. 108 82 The use of potassium phthalimide..and sodamide in place of the sodium derivative of benzamide also failed to give the desired result.
1981 P. Sykes Guidebk. to Mechanism in Org. Chem. (ed. 5) iii. 67 If two C=O groups are present the resultant imides, far from being basic, are often sufficiently acidic to form alkali metal salts, e.g. benzene-1,2-dicarboximide (phthalimide).
2001 P. Ball Bright Earth ix. 255 In 1928 a blue substance was noticed during the manufacture of a fine chemical called phthalimide by the Scottish Dyes company.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
<
n.1857
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/2/24 5:05:21