Thionyl Chloride → 1-(2,2-Difluoro-1,3-benzodioxol-5-yl)cyclopropanecarbonyl chloride

HRID 1645373Notes

Reaction equation

HRID 1645373 reaction equation
[F:1][C:2]1([F:17])[O:6][C:5]2[CH:7]=[CH:8][C:9]([C:11]3([C:14](O)=[O:15])[CH2:13][CH2:12]3)=[CH:10][C:4]=2[O:3]1.O=S(Cl)[Cl:20]>C1(C)C=CC=CC=1>[F:1][C:2]1([F:17])[O:6][C:5]2[CH:7]=[CH:8][C:9]([C:11]3([C:14]([Cl:20])=[O:15])[CH2:13][CH2:12]3)=[CH:10][C:4]=2[O:3]1

Participants

4

Reactant 2

HCID 24386Thionyl ChlorideHCID 442061031-(2,2-Difluoro-1,3-benzodioxol-5-yl)cyclopropanecarboxylic acid

Product 1

HCID 575168501-(2,2-Difluoro-1,3-benzodioxol-5-yl)cyclopropanecarbonyl chloride

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Conditions

Temperature
60 °C

Procedure

Compound 22 (1.2 eq) is slurried in toluene (2.5 vol) and the mixture heated to 60° C. SOCl2 (1.4 eq) is added via addition funnel. The toluene and SOCl2 are distilled from the reaction mixture after 30 minutes. Additional toluene (2.5 vol) is added and distilled again.

Workup

  1. distillationThe toluene and SOCl2 are distilled from the reaction mixture after 30 minutes
  2. additionAdditional toluene (2.5 vol) is added
  3. distillationdistilled again

Sources & evidence

ORD record
ord-f3cdca6516d84f069702fc542293eb22
Source dataset
uspto-grants-2012_02
Patent number
US08124781B2

Reaction notes

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