4,4-Dimethoxy-2-methylbutan-2-ol → 5-Hydroxy-2,2-dimethyl-6-propionyl-10-propyl-2H,8H-pyrano[2,3-f]chromen-8-one

HRID 2395865Notes

Reaction equation

HRID 2395865 reaction equation
[OH:1][C:2]1[CH:11]=[C:10]([OH:12])[C:9]([C:13](=[O:16])[CH2:14][CH3:15])=[C:8]2[C:3]=1[C:4]([CH2:18][CH2:19][CH3:20])=[CH:5][C:6](=[O:17])[O:7]2.CO[CH:23](OC)[CH2:24][C:25]([CH3:28])(O)[CH3:26]>>[OH:12][C:10]1[C:11]2[CH:23]=[CH:24][C:25]([CH3:28])([CH3:26])[O:1][C:2]=2[C:3]2[C:4]([CH2:18][CH2:19][CH3:20])=[CH:5][C:6](=[O:17])[O:7][C:8]=2[C:9]=1[C:13](=[O:16])[CH2:14][CH3:15]

Participants

3

Reactant 2

HCID 44399804,4-Dimethoxy-2-methylbutan-2-olHCID 54948785,7-Dihydroxy-8-propionyl-4-propyl-2H-chromen-2-one

Product 1

HCID 54948815-Hydroxy-2,2-dimethyl-6-propionyl-10-propyl-2H,8H-pyrano[2,3-f]chromen-8-one

Procedure

reacting 5,7-dihydroxy-8-propionyl-4-propylcoumarin with 4,4-dimethoxy-2-methylbutan-2-ol so as to produce 5-Hydroxy-2,2-dimethyl-6-propionyl-10-propyl -2H,8H-benzo[1,2-b: 3,4-b']-dipyran-8one;

Sources & evidence

ORD record
ord-34349c2e44234cb9b1c0ded42ef0a012
Source dataset
uspto-grants-1996_02
Patent number
US05489697

Reaction notes

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