| 单词 | pyrrolidone |
| 释义 | pyrrolidone Chem.|pɪˈrɒlɪdəʊn|
[ad. G. pyrrolidon (J. Tafel 1889, in Ber. d. Deut. Chem. Ges. XXII. 1861): see prec. and -one.]
Either of two isomeric mono-keto derivatives of pyrrolidine; esp. NH·(CH2)3·CO (2-pyrrolidone), a colourless crystalline solid with weakly basic properties; any substituted derivative of either isomer.
[1889Jrnl. Chem. Soc. LVI. 961 Methylpyrrolidone. ] Ibid. 1211 The first product..is very unstable, condensation immediately taking place, with formation of a derivative of pyrrolidone.1926H. G. Rule tr. J. Schmidt's Text-bk. Org. Chem. 517 The 2-keto-derivative of pyrrolidine is commonly known as ‘pyrrolidone’. Ibid. 520 Since succinimides are readily prepared in quantity, this process also renders the pyrrolidones easy of access. 1951I. L. Finar Org. Chem. I. xvi. 309 When reduced with sodium and ethanol, succinimide forms pyrrolidine,..and when reduced electrolytically, it forms pyrrolidone. Ibid. xxx. 617, 2-Pyrrolidone is the lactam..of γ-aminobutyric acid. 1975Gutsche & Pasto Fund. Org. Chem. xxvii. 817 The reaction between pyrrolidone and acetylene in the presence of potassium hydroxide to yield N-vinylpyrrolidone. |
英语词典包含277258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。
相关内容11：
相关热词搜索：pyrrolidone英英词典英英释义英语词汇意思用法释义英语
字词 尿性囊肿 释义 【医】 urinoma 汉译英翻译词典收录405719条汉英翻译词条，基本涵盖了全部......
单词 abactinal 释义 abactinal, a. Zool.|bktanl, bktnl|[f. L. ab away from + actinal.]Remot......
单词 pyritoid 释义 pyritoid, a.|pratd|[f. pyrit-es + -oid.]Resembling or allied to pyrites......
字词 尿带菌者 释义 【医】 urinary carrier 汉译英翻译词典收录405719条汉英翻译词条，基本涵......
字词 尿帕克 释义 【医】 uropac 汉译英翻译词典收录405719条汉英翻译词条，基本涵盖了全部常......
单词 pyrl 释义 Seepyrle 英语词典包含277258条英英释义在线翻译词条，基本涵盖了全部常用单词......