A Straightforward Synthesis of (3S)-4-Methoxybutane-1,3-diol and its Use as Chiral Auxiliary for the Preparation of (pS)-1-(Diphenylphosphino)-2-formyl-1′,2′,3′,4′,5′-pentamethylferrocene

Autor: Felix M. Geisler, Guenter Helmchen
Rok vydání: 2006
Předmět:
Zdroj: Synthesis. 2006:2201-2205
ISSN: 1437-210X
0039-7881
DOI: 10.1055/s-2006-942415
Popis: (3S)-4-Methoxy-butane-1,3-diol (S)-4, an important auxiliary for the synthesis of planar-chiral metallocenes, has been obtained from (S)-1,2,4-butanetriol via formation of an isomerically pure acetal of p-nitrobenzaldehyde, O-methylation and hydrolysis. Diol (S)-4 was used in a synthesis of the new planar-chiral ferrocene ({pS)-1-(diphenylphosphiiio)-2-formyl-1'},2',3',4',5'-pentamethylferrocene ({pS)-9.}
Databáze: OpenAIRE