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Glossary entry

English term or phrase:

dissolving metal reduction

Polish translation:

redukcja (pierścienia aromatycznego) solwatowanym metalem (i alkoholem) w ciekłym amoniaku

Added to glossary by Polangmar
Dec 22, 2009 16:16
14 yrs ago
English term

dissolving metal reduction

English to Polish Science Chemistry; Chem Sci/Eng
'The dissolving metal reduction reaction well known in the art as the Birch reduction is used for reducing compounds'
Proposed translations (Polish)
4 redukcja (pierścienia benzenowego/aromatycznego) metalem (i alkoholem) w ciekłym amoniaku
3 -1 redukcja za pomocą roztworzonego metalu
Change log

Sep 17, 2010 18:30: Polangmar Created KOG entry

Discussion

Polangmar Dec 22, 2009:
Ref. A solution of sodium in liquid ammonia consists of the electride salt [Na(NH3)x]+ e-, associated with the intense blue color of these solutions. The solvated electrons add to the aromatic ring to give a radical anion. The added alcohol supplies a proton to the carbanion, for most substrates ammonia is not acidic enough.
http://en.wikipedia.org/wiki/Birch_reduction
An electride is an ionic compound in which an electron is the anion. The first electrides to be studied in depth were solutions of alkali metals in ammonia. When sodium metal dissolves in ammonia, the result is a blue solution consisting of [Na(NH3)6]+ and solvated electrons.
http://en.wikipedia.org/wiki/Electride
Solvation, also sometimes called dissolution, is the process of attraction and association of molecules of a solvent with molecules or ions of a solute. As ions dissolve in a solvent they spread out and become surrounded by solvent molecules.
http://en.wikipedia.org/wiki/Solvation

Proposed translations

1 hr
Selected

redukcja (pierścienia benzenowego/aromatycznego) metalem (i alkoholem) w ciekłym amoniaku

The Birch reduction is the organic reduction of aromatic rings with sodium and an alcohol in liquid ammonia to form 1,4-cyclohexadienes.
http://tinyurl.com/ycvu53o

Redukcja pierścienia benzenowego sodem, litem lub potasem prowadzona w ciekłym amoniaku (tzw. redukcja Bircha) jest addycją 1,4 i daje w wyniku l ,4-cykloheksadien bez sprzężonego układu wiązań podwójnych.
http://mspatty.republika.pl/areny.html

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Note added at 1 hr (2009-12-22 17:21:21 GMT)
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Lithium and potassium can substitute for sodium, and alcohols are ethanol and tert-butanol.
http://tinyurl.com/ycvu53o

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Note added at 1 hr (2009-12-22 17:40:37 GMT)
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Można ściślej:
- redukcja (pierścienia benzenowego/aromatycznego) solwatowanym metalem (i alkoholem) w ciekłym amoniaku

http://tinyurl.com/yahr4gv

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Note added at 15 days (2010-01-07 03:37:22 GMT)
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Proces z zastosowaniem solwatowanych elektron[ów] przebiega w następujący sposób: metal bazowy, zwykle sód (ale czasem wapń lub lit) jest...
http://tinyurl.com/yaet4ze

Solvation, also sometimes called dissolution, is the process of attraction and association of molecules of a solvent with molecules or ions of a solute. As ions dissolve in a solvent they spread out and become surrounded by solvent molecules.
http://en.wikipedia.org/wiki/Solvation

Solvation of Na+ with water
http://en.wikipedia.org/wiki/File:Na+H2O.svg

Solwatacja – proces otaczania cząsteczek [lub jonów] rozpuszczanego związku chemicznego przez cząsteczki rozpuszczalnika.
http://pl.wikipedia.org/wiki/Solwatacja
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4 KudoZ points awarded for this answer.
-1
45 mins

redukcja za pomocą roztworzonego metalu

propozycja
reakcja zachodzi pod wpływem metalu (sodu, potasu lub litu) roztworzonego w ciekłym amoniaku ( http://en.wikipedia.org/wiki/Birch_reduction )
Peer comment(s):
disagree Polangmar : Nie chodzi tu o roztwarzanie, lecz o solwatację: http://pl.wikipedia.org/wiki/Roztwarzanie , http://pl.wikipedia.org/wiki/Solwatacja ; Solvation, also sometimes called dissolution... http://en.wikipedia.org/wiki/Solvation
41 mins
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