Alkylation of substituted sulfonylpyridine 1-oxides

Details Alkylation of substituted sulfonylpyridine 1-oxides Alkylation of substituted sulfonylpyridine 1-oxides

Category

C - Chemistry, Metallurgy

Subcategory

07

Subsubcategory

D

CPC

260/290.3, 260/2

IPC codes

C07D 213/70 (2006.01) C07D 213/71 (2006.01) C07D 213/89 (2006.01)

Type

Patent

Patent number

CA 1163997

Description

ABSTRACT Making a compound of the formula Image ( I ) wherein: R is Cl-C12 al? yl, allyl or benzyl, R1 and R2 are hydrogen, halogen, Cl-C4 alkyl, or phenyl, R3 is hydrogen, halogen, Cl-C4 alkyl, C1-C4 alkoxy, CF3, N02, phenyl or phenoxy m is an integer from 1 to 3 and n is zero or 1, by contacting a compound Or said formula where R is hydrogen with certain halohydrocarbons in the presence of solid KOH, a phase transfer catalyst, a solvent and an effective amount of water.

Application Number

396036

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