MX9709429A - Process for converting 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines. - Google Patents

Process for converting 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines.

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Publication number
MX9709429A
MX9709429A MX9709429A MX9709429A MX9709429A MX 9709429 A MX9709429 A MX 9709429A MX 9709429 A MX9709429 A MX 9709429A MX 9709429 A MX9709429 A MX 9709429A MX 9709429 A MX9709429 A MX 9709429A
Authority
MX
Mexico
Prior art keywords
compound
formula
converting
dichloropyridines
chloropyridines
Prior art date
Application number
MX9709429A
Other languages
Spanish (es)
Inventor
Yuhpyng L Chen
Sally Gut Ruggeri
Original Assignee
Pfizer
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pfizer filed Critical Pfizer
Priority to MX9709429A priority Critical patent/MX9709429A/en
Publication of MX9709429A publication Critical patent/MX9709429A/en

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Abstract

This invention relates to a process for converting 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines, comprising reacting a compound of formula (I), wherein R1 is (C1-C4)alkyl; R2 is methyl or ethyl; and R3, R4 and R5 are selected, independently, from (C1-C4)alkyl and (C1-C4)alkoxy; or a pharmaceutically acceptable salt thereof; comprising reacting a compound of formula (II), wherein R1 and R2 are defined as above, with a compound of formula (III), wherein R3, R4 and R5 are defined as above, in the presence of a base that is capable of deprotonating the compound of formula (III), optionally in the presence of an organometallic halide or oxide and a suitable solvent, and then optionally converting the resulting compound of formula (I) into a pharmaceutically acceptable salt of such compound.
MX9709429A 1997-12-02 1997-12-02 Process for converting 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines. MX9709429A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MX9709429A MX9709429A (en) 1997-12-02 1997-12-02 Process for converting 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MX9709429A MX9709429A (en) 1997-12-02 1997-12-02 Process for converting 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines.

Publications (1)

Publication Number Publication Date
MX9709429A true MX9709429A (en) 1998-07-31

Family

ID=39472133

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9709429A MX9709429A (en) 1997-12-02 1997-12-02 Process for converting 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines.

Country Status (1)

Country Link
MX (1) MX9709429A (en)

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees