2,4-Difluorobenzaldehyde → E-2,4-difluorostyryl 4-fluorobenzyl sulfone

Reaction equation

[F:1][C:2]1[CH:15]=[CH:14][C:5]([CH2:6][S:7]([CH2:10][C:11](O)=O)(=[O:9])=[O:8])=[CH:4][CH:3]=1.[F:16][C:17]1[CH:24]=[C:23]([F:25])[CH:22]=[CH:21][C:18]=1C=O>>[F:1][C:2]1[CH:15]=[CH:14][C:5]([CH2:6][S:7](/[CH:10]=[CH:11]/[C:22]2[CH:21]=[CH:18][C:17]([F:16])=[CH:24][C:23]=2[F:25])(=[O:9])=[O:8])=[CH:4][CH:3]=1

Participants

Reactant 2

HCID 737702,4-Difluorobenzaldehyde

HCID 11447598[(4-Fluorobenzyl)sulfonyl]acetic acid

Product 1

HCID 9883232E-2,4-difluorostyryl 4-fluorobenzyl sulfoneYield 68%

Procedure

A solution of 4-fluorobenzyl sulfonylacetic acid (0.01 mol) and 2.4-difluorobenzaldehyde (0.01 mol) was subjected to Procedure 1. The title compound was obtained in 68% yield.

Sources & evidence

ORD record: ord-4fabeb2f0a614f8ebafeaab95a2e2d7e
Source dataset: uspto-grants-2002_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06359013B1

Reaction notes

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