Synthesis and Structural Properties of Axially Chiral Binaphthothiophene Dicarboxylic Acid.
Chem Pharm Bull (Tokyo)
; 66(12): 1203-1206, 2018.
Article
em En
| MEDLINE
| ID: mdl-30504635
ABSTRACT
Axially chiral binaphthothiophene dicarboxylic acid was prepared as a novel functionalized chiral dicarboxylic acid. The crystal structures of both the racemic form and its salt with chiral diamine revealed the intramolecular S···O interactions (chalcogen bonds) between the sulfur in the naphthothiophene rings and the oxygen of the carboxy groups. The negative-positive and the positive-negative Cotton effects from longer to shorter wavelengths were observed for (R)- and (S)-enantiomers, respectively, in the circular dichroism (CD) spectra.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Tiofenos
/
Ácidos Dicarboxílicos
Idioma:
En
Revista:
Chem Pharm Bull (Tokyo)
Ano de publicação:
2018
Tipo de documento:
Article