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 |
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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 |
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