Hydrochloric Acid → HCID 86741996, compound

HRID 4414Notes

Reaction equation

HRID 4414 reaction equation
[OH:1][C:2]1[C:10]([CH2:11]/[CH:12]=[C:13](\[CH3:21])/[CH2:14][CH2:15][C:16]([O:18][CH2:19][CH3:20])=[S:17])=[C:9]([O:22][CH3:23])[C:8]([CH3:24])=[C:7]2[C:3]=1[C:4](=[O:25])[O:5][CH2:6]2.N1C=CC=CC=1.[C:32](Cl)(=[O:34])[CH3:33].Cl>C(#N)C>[C:32]([O:1][C:2]1[C:10]([CH2:11]/[CH:12]=[C:13](\[CH3:21])/[CH2:14][CH2:15][C:16]([O:18][CH2:19][CH3:20])=[S:17])=[C:9]([O:22][CH3:23])[C:8]([CH3:24])=[C:7]2[C:3]=1[C:4](=[O:25])[O:5][CH2:6]2)(=[O:34])[CH3:33]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 1049PyridineHCID 6367Acetyl chlorideHCID 86741995HCID 86741995, compound

Product 1

HCID 86741996HCID 86741996, compound

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a solution of 1.6 g of ethyl (E)-6-(1,3-dihydro-4-hydroxy-6-methoxy-7-methyl-3-oxo-5-isobenzofuranyl)-4-methyl-4-thiohexenoate in 120 ml of acetonitrile at 0° C. was added 0.74 ml of pyridine followed by 1.0 ml of acetyl chloride. After stirring for 2 hours the reaction mixture was poured into dilute hydrochloric acid and extracted with ethyl acetate. The organic solution was dried over anhydrous magnesium sulfate and evaporated to an oil, which was triturated with ether to give ethyl (E)-6-(1,3-dihydro-4-acetoxy-6-methoxy-7-methyl-3-oxo-5-isobenzofuranyl)-4-methyl-4-thiohexenoate, m.p. 81°-84° C.

Workup

  1. extractionextracted with ethyl acetate
  2. dry with materialThe organic solution was dried over anhydrous magnesium sulfate
  3. customevaporated to an oil, which
  4. customwas triturated with ether

Sources & evidence

ORD record
ord-06f8abb82a5a4632b3979237b8ea745a
Source dataset
uspto-grants-1988_02
Patent number
US04725622

Reaction notes

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