1.
Org Lett
; 3(15): 2379-82, 2001 Jul 26.
Artigo
em Inglês
| MEDLINE
| ID: mdl-11463321
RESUMO
[reaction: see text] A series of regioregular oligothiophenes bearing chiral oxazoline residues have been synthesized in high yields by a stepwise synthesis using the Stille cross-coupling reaction. The chiroptical properties of the oligothiophenes up to the octamer were investigated with UV-visible and CD spectroscopies. The octamer showed split-type Cotton effects in chloroform as a good solvent in the presence of a poor solvent such as acetonitrile, while the lower molecular weight oligomers exhibited almost no induced CD.