HCID 15657624, compound → HCID 15657630, compound

HRID 1197526Notes

Reaction equation

HRID 1197526 reaction equation
O[C:2]1([C:12]([O:14][CH2:15][CH3:16])=[O:13])[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[S:5][CH2:4][CH2:3]1>C1(C)C=CC=CC=1>[S:5]1[C:6]2[CH:11]=[CH:10][CH:9]=[CH:8][C:7]=2[C:2]([C:12]([O:14][CH2:15][CH3:16])=[O:13])=[CH:3][CH2:4]1

Participants

3

Reactant 1

HCID 15657624HCID 15657624, compound

Product 1

HCID 15657630HCID 15657630, compoundYield 104.1%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

In a manner similar to that described in Example 15, ethyl 3,4-dihydro-4-hydroxy-2H-1-benzothiopyran-4-carboxylate (16 g) was dehydrated in refluxing toluene to give in quantitative yield after chromatography the title compound as a mobil oil (15.4 g).

Sources & evidence

ORD record
ord-ffe819f59ea947478ae33b7211781d89
Source dataset
uspto-grants-1994_01
Patent number
US05276053

Reaction notes

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