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BASE NUCLEOPHILE [2 records]
Record 1 - internal organization data 2009-03-11
Record 1, English
Record 1, Subject field(s)
- Electrolysis (Electrokinetics)
- Chemistry
Record 1, Main entry term, English
- Lewis base
1, record 1, English, Lewis%20base
correct, see observation
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A substance that can donate an electron pair; examples are the hydroxide ion, OH-, and ammonia NH3. 2, record 1, English, - Lewis%20base
Record number: 1, Textual support number: 1 OBS
... the term Lewis acid will be employed exclusively to refer to electron-pair acceptors. ... The definition of Lewis acids and bases in terms of gain or loss of electrons should not be confused with the definition of oxidizing and reducing agents in similar terms. 3, record 1, English, - Lewis%20base
Record 1, French
Record 1, Domaine(s)
- Électrolyse (Électrocinétique)
- Chimie
Record 1, Main entry term, French
- base de Lewis
1, record 1, French, base%20de%20Lewis
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- base nucléophile 2, record 1, French, base%20nucl%C3%A9ophile
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Composé donneur de doublet. 3, record 1, French, - base%20de%20Lewis
Record number: 1, Textual support number: 1 CONT
Les acides de Lewis, accepteurs d’électrons, sont souvent nommés électrophiles; les bases de Lewis se fixent sur la région des particules acides pauvre en électrons, et par conséquent où l’influence positive du noyau se fait davantage sentir : on les nomme nucléophiles. 2, record 1, French, - base%20de%20Lewis
Record number: 1, Textual support number: 1 PHR
Base de Lewis hydrophobe. 4, record 1, French, - base%20de%20Lewis
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1996-10-11
Record 2, English
Record 2, Subject field(s)
- Chemistry
Record 2, Main entry term, English
- Meisenheimer adduct
1, record 2, English, Meisenheimer%20adduct
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A cyclohexadienyl derivative formed as Lewis adduct from a nucleophile (Lewis base) and an aromatic or heteroaromatic compound. 1, record 2, English, - Meisenheimer%20adduct
Record number: 2, Textual support number: 1 OBS
In earlier usage the term Meisenheimer complex was restricted to the typical Meisenheimer alkoxide adducts of nitro-substituted aromatic ethers. 1, record 2, English, - Meisenheimer%20adduct
Record 2, French
Record 2, Domaine(s)
- Chimie
Record 2, Main entry term, French
- adduit de Meisenheimer
1, record 2, French, adduit%20de%20Meisenheimer
correct, see observation, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Adduit de Lewis comportant le groupe cyclohexadiényle, formé entre un nucléophile(base de Lewis) et un composé aromatique hétéroaromatique. 1, record 2, French, - adduit%20de%20Meisenheimer
Record number: 2, Textual support number: 1 OBS
À l’origine, l’expression «complexe de Meisenheimer» était réservée aux adduits formés entre des ions alcoolates et des éthers aromatiques substitués par des groupes nitro. 1, record 2, French, - adduit%20de%20Meisenheimer
Record number: 2, Textual support number: 2 OBS
Les adduits cationiques analogues [...] considérés comme des intermédiaires réactionnels intervenant au cours des réactions de substitutions aromatiques électrophiles sont appelés «intermédiaires de Wheland». 1, record 2, French, - adduit%20de%20Meisenheimer
Record 2, Spanish
Record 2, Textual support, Spanish
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