Resolution of inherently chiral anti-O,O′-dialkylthiacalix[4]arenes and determination of their absolute stereochemistries

Autor: Takashi Kajiwara, Nariaki Sasagawa, Nobuji Matsumura, Koichi Natori, Tetsutaro Hattori, Fumitaka Narumi
Rok vydání: 2008
Předmět:
Zdroj: Tetrahedron: Asymmetry. 19:1470-1475
ISSN: 0957-4166
DOI: 10.1016/j.tetasy.2008.05.034
Popis: Inherently chiral anti - O , O ′-dibenzyl- and anti - O , O ′-dibutyl- p - tert -butylthiacalix[4]arenes 4 and 6 are resolved as ( S )-2-methoxy-2-(naphthalen-1-yl)propionic esters by flash chromatography. The absolute stereochemistries were determined to be ( S a )-(+)- 4 and ( S a )-(+)- 6 by X-ray crystallographic analyses.
Databáze: OpenAIRE