Meta-Substitution

Meta-Substitution
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мета-замещение

Deutsch-Russische Wörterbuch der Chemie. 2014.

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Смотреть что такое "Meta-Substitution" в других словарях:

  • Substitution electrophile aromatique — Substitution électrophile aromatique La substitution électrophile aromatique (ou SEA, voire SEAr) est une réaction chimique du domaine de la chimie organique, au cours de laquelle un atome, en règle générale d hydrogène, fixé à un cycle… …   Wikipédia en Français

  • Meta-SQL — Use (with reference to PeopleSoft) Meta SQL expands to platform specific SQL substrings, causes another function to be called, or substitutes a value. Meta SQL constructs are used in functions that pass SQL strings, such as the following: SQLExec …   Wikipedia

  • Substitution électrophile aromatique — La substitution électrophile aromatique (ou SEA, voire SEAr) est une réaction organique au cours de laquelle un atome, en règle générale d hydrogène, ou un groupe d atome, fixé à un cycle aromatique est substitué par un groupement électrophile.… …   Wikipédia en Français

  • Meta (Chemie) — Die Substitutionsmuster sind Teil der organisch chemischen Nomenklatur und beschreiben an Aromaten die Positionen der Substituenten (außer Wasserstoff) in ihrer Lage zueinander. Inhaltsverzeichnis 1 ortho, meta, para 2 vicinal (vic.),… …   Deutsch Wikipedia

  • Meta (disambiguation) — For the umbrella Wikimedia project which co ordinates all other Wikimedia wiki projects, known as the meta wiki, see Wikipedia:Meta Meta may refer to: Meta or meta , a common English prefix meaning beyond which often carries a sense of self… …   Wikipedia

  • méta- — mét(a) ♦ Élément, du gr. meta, exprimant la succession, le changement, la participation, et en philosophie et dans les sciences humaines « ce qui dépasse, englobe » (un objet, une science) : métalangage, métamathématique. ● méta Préfixe employé …   Encyclopédie Universelle

  • Meta- (chemistry) — In chemistry, meta is a prefix, used for systematic names in IUPAC nomenclature. It has several meanings. [1] In organic chemistry, meta indicates the positions of substituents in aromatic cyclic compounds. The substituents have …   Wikipedia

  • meta- — In medicine and biology, a prefix denoting the concept of after, subsequent to, behind, or hindmost. Cf.:post . [G. after, between, over] 1. In chemistry, an italicized prefix denoting joint, action sharing. 2. (m ) In chemistry, an italicized… …   Medical dictionary

  • meta- — or met prefix Etymology: New Latin & Medieval Latin, from Latin or Greek; Latin, from Greek, among, with, after, from meta among, with, after; akin to Old English mid, mith with, Old High German mit 1. a. occurring later than or in succession to… …   New Collegiate Dictionary

  • meta- — (also met before a vowel or h) combining form 1》 denoting a change of position or condition: metamorphosis. 2》 denoting position behind, after, or beyond: metacarpus. 3》 denoting something of a higher or second order kind: metalanguage. 4》… …   English new terms dictionary

  • Arene substitution patterns — are part of organic chemistry IUPAC nomenclature and pinpoint the position of substituents other than hydrogen in relation to each other on an aromatic hydrocarbon. Contents 1 Ortho, meta, and para substitution 2 Ipso, meso, and peri substitution …   Wikipedia


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