Hydrochloric Acid → 6-(1,3-Dihydro-6-hydroxy-7-methyl-3-oxo-4-p-toluenesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoic acid

HRID 1757199Notes

Reaction equation

HRID 1757199 reaction equation
C[O:2][C:3]1[C:11]([CH3:12])=[C:10]2[C:6]([C:7](=[O:13])[O:8][CH2:9]2)=[C:5]([O:14][S:15]([C:18]2[CH:23]=[CH:22][C:21]([CH3:24])=[CH:20][CH:19]=2)(=[O:17])=[O:16])[C:4]=1[CH2:25]/[CH:26]=[C:27](\[CH3:34])/[CH2:28][CH2:29][C:30]([O:32]C)=[O:31].[I-].[Li+].C(OCC)(=O)C.Cl>N1C(C)=CC(C)=CC=1C>[OH:2][C:3]1[C:11]([CH3:12])=[C:10]2[C:6]([C:7](=[O:13])[O:8][CH2:9]2)=[C:5]([O:14][S:15]([C:18]2[CH:19]=[CH:20][C:21]([CH3:24])=[CH:22][CH:23]=2)(=[O:17])=[O:16])[C:4]=1[CH2:25][CH:26]=[C:27]([CH3:34])[CH2:28][CH2:29][C:30]([OH:32])=[O:31]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 8857Ethyl AcetateHCID 66321Lithium iodideHCID 10529011Methyl 4'-Tosylmycophenolate

Product 1

HCID 536610776-(1,3-Dihydro-6-hydroxy-7-methyl-3-oxo-4-p-toluenesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoic acid

Reagents, catalysts & solvents 1

HCID 79532,4,6-TrimethylpyridineSolvent

Procedure

A solution of methyl (E) 6-(1,3-dihydro-6-methoxy-7-methyl-3-oxo-4-p-toluenesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoate (28 g) in 2,4,6-collidine (100 ml) was heated to 65° C. and lithium iodide (50 g) was added. After 3 days the solution was added to ethyl acetate and dilute hydrochloric acid. The organic layer was dried and evaporated to afford (E) 6-(1,3-dihydro-6-hydroxy-7-methyl-3-oxo-4-p-toluenesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoic acid.

Workup

  1. customThe organic layer was dried
  2. customevaporated

Sources & evidence

ORD record
ord-39092e12d27547b18ca7313642f21b53
Source dataset
uspto-grants-1995_08
Patent number
US05444072

Reaction notes

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