Yeast-based process for production of l-pac

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound

Reexamination Certificate

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C435S150000, C435S156000, C435S244000, C435S255200, C435S255210, C435S171000

Reexamination Certificate

active

07063969

ABSTRACT:
The invention provides a method of synthesis of a substituted or unsubstituted carbinol compound, comprising the steps of subjecting the corresponding substituted or unsubstituted aromatic aldehyde to acyloin condensation mediated by yeast in the presence of either (a) a supereritical fluid or (b) a liquefied gas, and recovering the carbinol compound. Preferably the yeast isSaccharomyces cerevisiae. In a particularly preferred embodiment the aromatic aldehyde is benzaldehyde and the carbinol is phenylacetylcarbinol, according to the reaction (I): in which the benzaldehyde, the pyruvic acid, or both may optionally be substituted.

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