Production of optically active 2-substituted...

Details Production of optically active 2-substituted... Production of optically active 2-substituted...

C - Chemistry, Metallurgy

12

P

C12P 17/06 (2006.01) C07D 311/30 (2006.01) C12P 41/00 (2006.01)

Patent

CA 2238172

Optically active 2-substituted tetrahydropyran-4-ols or esters thereof may be prepared using esterases or hydrolases from the corresponding racemic mixtures of esters or alcohols. This provides a route to the corresponding optically active ketones. The racemic mixtures are preferably in the cis-form. Such mixtures may be produced by reacting but-3-ene-1-ol with an aldehyde in the presence of an acid.

On peut préparer des tétrahydropyrane-4-ols à substitution en position 2 ou leurs esters au moyen d'estérases ou d'hydrolases provenant des mélanges racémiques correspondants d'esters ou d'alcools. Ceci constitue une étape vers l'obtention des cétones correspondantes actives sur le plan optique. Ces mélanges racémiques sont, de préférence, de forme cis. On peut obtenir ces mélanges par réaction de but-3-ène-1-ol avec un aldéhyde en présence d'un acide.

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