Benzyl Bromide → diethyl 7-(hexyloxy)-3,4-dihydro-4-oxo-8-propyl-2H-1-benzopyran-2,2-dipropanoate

HRID 2371651Notes

Reaction equation

[O:1]=[C:2]1[C:7]2[CH:8]=[CH:9][C:10]([OH:15])=[C:11]([CH2:12][CH2:13][CH3:14])[C:6]=2[O:5][C:4]([CH2:23][CH2:24][C:25]([O:27][CH2:28][CH3:29])=[O:26])([CH2:16][CH2:17][C:18]([O:20][CH2:21][CH3:22])=[O:19])[CH2:3]1.Br[CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH3:36].C(Br)C1C=CC=CC=1>>[CH2:31]([O:15][C:10]1[CH:9]=[CH:8][C:7]2[C:2](=[O:1])[CH2:3][C:4]([CH2:16][CH2:17][C:18]([O:20][CH2:21][CH3:22])=[O:19])([CH2:23][CH2:24][C:25]([O:27][CH2:28][CH3:29])=[O:26])[O:5][C:6]=2[C:11]=1[CH2:12][CH2:13][CH3:14])[CH2:32][CH2:33][CH2:34][CH2:35][CH3:36]

Participants

Reactant 3

HCID 7498Benzyl Bromide

HCID 81011-Bromohexane

HCID 19756625diethyl 3,4-dihydro-4-oxo-7-hydroxy-8-propyl-2H-1-benzopyran-2,2-dipropanoate

Product 1

HCID 15157482diethyl 7-(hexyloxy)-3,4-dihydro-4-oxo-8-propyl-2H-1-benzopyran-2,2-dipropanoate

Procedure

The title compound (388 mg) was prepared by the method of Example 18 substituting the title product of Example 1 (406 mg; 1.00 mmol) for the title product of Example 2, and further substituting 1-bromohexane (198 mg, 1.20 mmol for benzyl bromide.

Sources & evidence

ORD record: ord-0912d05778ea47eb8ebea8064f95d53a
Source dataset: uspto-grants-1992_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05093353

Reaction notes

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