Production process of optically pure 2-(4- hydroxyphenoxy)-propionic acid compounds

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Sep 11, 2007
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Nov 30, 2006
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Aug 16, 2004
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Sep 30, 2003

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Abstract

A process for producing optically pure R-hydroxyphenoxypropanoic acid or a salt or ester thereof by reaction of hydroquinone or a salt thereof with an S-halopropanoic acid or a salt thereof in the presence of a mild reducing agent.

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SYNGENTA LIMITED

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C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS

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Inventor Name	Address	# of filed Patents	Total Citations
Cleugh, Ernest Stephen	West Yorkshire, GB	1	1

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Production process of optically pure 2-(4- hydroxyphenoxy)-propionic acid compounds

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United States of America Patent

10571863

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PATENT NO	7268249
APP PUB NO	20060270851A1
SERIAL NO	10571863
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
September 11, 2007	US,7268249,B2 US7268249B2	GRANTED PATENT AS SECOND PUBLICATION
November 30, 2006	US,20060270851,A1 US20060270851A1	FIRST PUBLISHED PATENT APPLICATION

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10571863

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