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AROMATIC RING [1 record]
Record 1 - internal organization data 2001-01-18
Record 1, English
Record 1, Subject field(s)
- Chemistry
- Biological Sciences
Record 1, Main entry term, English
- aromatic ring
1, record 1, English, aromatic%20ring
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The resonance-stabilized ring characteristic of aromatic organic compounds. 1, record 1, English, - aromatic%20ring
Record number: 1, Textual support number: 1 CONT
Most aromatic rings are planar six-membered rings (e.g., benzene or pyridine) or planar five-membered rings containing a hetero atom with an unshared electron pair (e.g,, furan or pyrrole). Although aromatic rings are unsaturated, they do not undergo the addition reactions characteristic of alkenes; instead, aromatic compounds are characterized by substitution reactions. Many organic compounds, such as naphthalene and purine, contain several aromatic rings fused together. 1, record 1, English, - aromatic%20ring
Record number: 1, Textual support number: 1 OBS
It appears that human, because of the course of evolution, do not have biochemical ability to synthesize the benzene ring. As a result, phenylalanine and tryptophan derivatives are essential in the human diet. 2, record 1, English, - aromatic%20ring
Record 1, French
Record 1, Domaine(s)
- Chimie
- Sciences biologiques
Record 1, Main entry term, French
- noyau aromatique
1, record 1, French, noyau%20aromatique
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- anneau aromatique 2, record 1, French, anneau%20aromatique
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La famille [...] des aminoacides non polaires [...] contient cinq aminoacides ayant une chaîne hydrocarbonée aliphatique: alanine, leucine, isoleucine, valine et proline, deux possédant des noyaux aromatiques : phénylalanine et tryptophane, et un contenant du soufre : la méthionine. Tous ces aminoacides sont moins solubles dans l'eau que ne le sont les aminoacides polaires. 1, record 1, French, - noyau%20aromatique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Química
- Ciencias biológicas
Record 1, Main entry term, Spanish
- anillo aromático
1, record 1, Spanish, anillo%20arom%C3%A1tico
masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
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