diethyl 3,4-dihydro-7-[3-(4-chlorophenoxy)propoxy]-4-oxo-8-propyl-2H-1-benzopyran-2,2-dipropanoate → 3,4-dihydro-7-[3-(2-propylphenoxy)propoxy]-4-oxo-8-propyl-2H-1-benzopyran-2,2-dipropanoic acid

HRID 2371625Notes

Reaction equation

HRID 2371625 reaction equation
[CH2:1]([C:4]1[CH:42]=[CH:41][CH:40]=[CH:39][C:5]=1[O:6][CH2:7][CH2:8][CH2:9][O:10][C:11]1[CH:35]=[CH:34][C:14]2[C:15](=[O:33])[CH2:16][C:17]([CH2:26][CH2:27][C:28]([O:30]CC)=[O:29])([CH2:19][CH2:20][C:21]([O:23]CC)=[O:22])[O:18][C:13]=2[C:12]=1[CH2:36][CH2:37][CH3:38])[CH2:2][CH3:3].ClC1C=CC(OCCCOC2C=CC3C(=O)CC(CCC(OCC)=O)(CCC(OCC)=O)OC=3C=2CCC)=CC=1>>[CH2:1]([C:4]1[CH:42]=[CH:41][CH:40]=[CH:39][C:5]=1[O:6][CH2:7][CH2:8][CH2:9][O:10][C:11]1[CH:35]=[CH:34][C:14]2[C:15](=[O:33])[CH2:16][C:17]([CH2:26][CH2:27][C:28]([OH:30])=[O:29])([CH2:19][CH2:20][C:21]([OH:23])=[O:22])[O:18][C:13]=2[C:12]=1[CH2:36][CH2:37][CH3:38])[CH2:2][CH3:3]

Participants

3

Reactant 2

HCID 15157438diethyl 3,4-dihydro-7-[3-(4-chlorophenoxy)propoxy]-4-oxo-8-propyl-2H-1-benzopyran-2,2-dipropanoateHCID 15157457diethyl 3,4-dihydro-7-[3-(2-propylphenoxy)propoxy]-4-oxo-8-propyl-2H-1-benzopyran-2,2-dipropanoate

Product 1

HCID 151574583,4-dihydro-7-[3-(2-propylphenoxy)propoxy]-4-oxo-8-propyl-2H-1-benzopyran-2,2-dipropanoic acid

Procedure

The title compound was prepared by the method of Example 22 substituting the title product of Example 40 (446 mg) for the title product of Example 21. Crystallization from ethyl acetate/hexane produced 252 mg as a solid, m.p. 163°-165° C.

Workup

  1. customCrystallization from ethyl acetate/hexane
  2. customproduced 252 mg as a solid, m.p. 163°-165° C.

Sources & evidence

ORD record
ord-c7014ad045334c4d8100a7010ea2fdda
Source dataset
uspto-grants-1992_03
Patent number
US05093353

Reaction notes

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