pyrrolidonen.
/pᵻˈrɒlᵻdəʊn/, U.S. /pᵻˈrɑləˌdoʊn/ Chemistry.
Each of two isomeric compounds which are keto derivatives of pyrrolidine; any substituted derivative of either compound.The more important isomer (more fully 2-pyrrolidone) is a colourless crystalline solid with weakly basic properties; NH·(CH2)3·CO.
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pyrrolidone1889
1889 Jrnl. Chem. Soc. 56 961 Methylpyrrolidone.]
1889 Jrnl. Chem. Soc. 56 1211 The first product..is very unstable, condensation immediately taking place, with formation of a derivative of pyrrolidone.
1926 H. G. Rule tr. J. Schmidt Text-bk. Org. Chem. 520 Since succinimides are readily prepared in quantity, this process also renders the pyrrolidones easy of access.
1951 I. L. Finar Org. Chem. I. xxx. 617 2-Pyrrolidone is the lactam..of γ-aminobutyric acid.
1975 C. D. Gutsche & D. J. Pasto Fund. Org. Chem. xxvii. 817 The reaction between pyrrolidone and acetylene in the presence of potassium hydroxide to yield N-vinylpyrrolidone.
1994 D. Rushkoff Cyberia ii. viii. 101 The pyrrolidone derivatives are the smart substances deserving the most attention. In an unknown way, they improve the functioning of the cholinergic system.
This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).
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