- ylide
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Any organic compound in which two adjacent atoms are connected by both a covalent and an ionic bond; normally written X-Y
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ylide
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Ylide — [Kurzwort], von G. Wittig 1947 eingeführte Bezeichnung für sehr reaktionsfähige quartäre Ammoniumverbindungen, in denen ein Stickstoff und ein Kohlenstoffatom gleichzeitig durch eine kovalente Bindung (...yl) und eine Ionenbeziehung (...id)… … Universal-Lexikon
Ylide — Ein Ylid ist ein inneres Salz mit Kohlenstoff als Anion (also ein Zwitterion). Die Kohlenstoff Heteroatom Bindung hat sowohl kovalenten ( yl ) als auch ionischen ( id ) Charakter. Das carbanionische Zentrum wird vom benachbarten Heteroatom… … Deutsch Wikipedia
Ylide — An ylid or ylide (US) is a neutral molecule with a positive and a negative charge on adjacent atoms. They appear in organic chemistry as reagents or reactive intermediates. An ylide is accompanied to some extent by (and often depicted as) its… … Wikipedia
ylide — ilidas statusas T sritis chemija formulė Formulę žr. priede. priedas( ai) Grafinis formatas atitikmenys: angl. ylide rus. илид … Chemijos terminų aiškinamasis žodynas
Nitrile ylide — Nitrile ylides also known as nitrilium ylides, or nitrilium methylides are generally reactive intermediates. [1] Usually, they cannot be isolated. However, a structure has been determined on a particularly stable nitrile ylide by X ray… … Wikipedia
amine ylide — noun An ammonium ylide … Wiktionary
phosphorus ylide — noun A molecule of phosphorus that contains both covalent and ionic bonds … Wiktionary
ammonium ylide — noun Any dipolar organic compound of general formula RN CR … Wiktionary
Johnson–Corey–Chaykovsky reaction — The Johnson–Corey–Chaykovsky reaction (sometimes referred to as the Corey–Chaykovsky reaction or CCR) is a chemical reaction used in organic chemistry for the synthesis of epoxides, aziridines, and cyclopropanes. It was discovered in 1961 by A.… … Wikipedia
Wittig reaction — The Wittig reaction is a chemical reaction of an aldehyde or ketone with a triphenyl phosphonium ylide (often called a Wittig reagent) to give an alkene and triphenylphosphine oxide. [cite journal author = Georg Wittig, Ulrich Schöllkopf journal … Wikipedia
