p-Toluenesulfonic acid → (S)alpha-cyano-3-phenoxy-4-fluoro-benzyl(1R,cis,Z)2,2-dimethyl-3-[3-oxo-3-hydroxy-1-propenyl]-cyclopropane-carboxylate

HRID 1639454Notes

Reaction equation

HRID 1639454 reaction equation
[CH3:1][C:2]1([CH3:34])[C@@H:4](/[CH:5]=[CH:6]\[C:7](=[O:13])[O:8]C(C)(C)C)[C@H:3]1[C:14]([O:16][C@H:17]([C:32]#[N:33])[C:18]1[CH:23]=[CH:22][C:21]([F:24])=[C:20]([O:25][C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[CH:19]=1)=[O:15].C1(C)C=CC(S(O)(=O)=O)=CC=1>C1(C)C=CC=CC=1>[CH3:1][C:2]1([CH3:34])[C@@H:4](/[CH:5]=[CH:6]\[C:7](=[O:8])[OH:13])[C@H:3]1[C:14]([O:16][C@H:17]([C:32]#[N:33])[C:18]1[CH:23]=[CH:22][C:21]([F:24])=[C:20]([O:25][C:26]2[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=2)[CH:19]=1)=[O:15]

Participants

4

Reactant 2

HCID 6101p-Toluenesulfonic acidHCID 13188405(S)alpha-cyano-3-phenoxy-4-fluoro-benzyl(1R,cis,Z)2,2-dimethyl-3-[3-oxo-3-tert.-butoxy-1-propenyl]-cyclopropanecarboxylate

Product 1

HCID 86740328(S)alpha-cyano-3-phenoxy-4-fluoro-benzyl(1R,cis,Z)2,2-dimethyl-3-[3-oxo-3-hydroxy-1-propenyl]-cyclopropane-carboxylateYield 106.6%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

A mixture of 350 g of the product of Step A, 35 g of p-toluene sulfonic acid and 3.5 liters of toluene was refluxed for 45 minutes and was then cooled, washed with water, dried and evaporated to dryness under reduced pressure to obtain 328 g of (S)α-cyano-3-phenoxy-4-fluoro-benzyl (1R,cis,Z) 2,2-dimethyl-3-[3-oxo-3-hydroxy-1-propenyl]-cyclopropane-carboxylate.

Workup

  1. temperaturewas refluxed for 45 minutes
  2. temperaturewas then cooled
  3. washwashed with water
  4. customdried
  5. customevaporated to dryness under reduced pressure

Sources & evidence

ORD record
ord-923d8228f15d4196bc0ed080d197e6cc
Source dataset
uspto-grants-1989_11
Patent number
US04883806

Reaction notes

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