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ASYMMETRIC SYNTHESIS [1 record]
Record 1 - internal organization data 2011-11-09
Record 1, English
Record 1, Subject field(s)
- Chemical Engineering
Record 1, Main entry term, English
- asymmetric synthesis
1, record 1, English, asymmetric%20synthesis
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
According to the original definition (Marckwald), an asymmetric synthesis is a reaction which produces optically active substances from symmetrically constituted compounds with the intermediate use of optically active materials but with the exclusion of any analytical (separation) process. According to a broader definition by Morrison and Mosher (1971), an asymmetric synthesis is a reaction in which an achiral unit in an ensemble of substrate molecules (having either enantiotopic or diastereotopic groups or faces) is converted into a chiral unit in such a manner that unequal amounts of stereoisomers are produced. Asymmetric syntheses thus comprise both enantio- and diastereoselective reactions with the proviso that a new chiral centre is created. 2, record 1, English, - asymmetric%20synthesis
Record 1, French
Record 1, Domaine(s)
- Génie chimique
Record 1, Main entry term, French
- synthèse asymétrique
1, record 1, French, synth%C3%A8se%20asym%C3%A9trique
correct, see observation, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Synthèse d'un produit chiral à partir d'un précurseur achiral sans recours à des dédoublements de produits ou d'intermédiaires racémiques. 2, record 1, French, - synth%C3%A8se%20asym%C3%A9trique
Record number: 1, Textual support number: 1 OBS
Du fait de désaccord sur l'extension de cette définition à des substances dont les molécules comportent déjà un ou plusieurs éléments chiraux, et dans lesquelles la synthèse introduit un nouvel élément chiral, il est préférable [selon certains auteurs] de remplacer ce terme traditionnel par «synthèse énantiosélective» ou «synthèse diastéréosélective» selon le cas. 2, record 1, French, - synth%C3%A8se%20asym%C3%A9trique
Record number: 1, Textual support number: 2 OBS
synthèse asymétrique : termes et définition publiés au Journal officiel de la République française le 18 avril 2001. 3, record 1, French, - synth%C3%A8se%20asym%C3%A9trique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Ingenieria química
Record 1, Main entry term, Spanish
- síntesis asimétrica
1, record 1, Spanish, s%C3%ADntesis%20asim%C3%A9trica
feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
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