Pentaerythritol → Pentaerythritol Tetrakis(2,4-dimethoxybenzoate)

HRID 66691

Reaction equation

[CH3:1][O:2][C:3]1[CH:11]=[C:10]([O:12][CH3:13])[CH:9]=[CH:8][C:4]=1[C:5](Cl)=[O:6].[OH:14][CH2:15][C:16]([CH2:21][OH:22])([CH2:19][OH:20])[CH2:17][OH:18]>>[CH3:1][O:2][C:3]1[CH:11]=[C:10]([O:12][CH3:13])[CH:9]=[CH:8][C:4]=1[C:5]([O:14][CH2:15][C:16]([CH2:21][O:22][C:5](=[O:6])[C:4]1[CH:8]=[CH:9][C:10]([O:12][CH3:13])=[CH:11][C:3]=1[O:2][CH3:1])([CH2:19][O:20][C:5](=[O:6])[C:4]1[CH:8]=[CH:9][C:10]([O:12][CH3:13])=[CH:11][C:3]=1[O:2][CH3:1])[CH2:17][O:18][C:5](=[O:6])[C:4]1[CH:8]=[CH:9][C:10]([O:12][CH3:13])=[CH:11][C:3]=1[O:2][CH3:1])=[O:6]

Participants

Reactant 2

HCID 8285Pentaerythritol

HCID 27347192,4-Dimethoxybenzoyl chloride

Product 1

HCID 20530744Pentaerythritol Tetrakis(2,4-dimethoxybenzoate)Yield 78%

Procedure

Using the procedure of Eample I, 2,4-dimethoxybenzoyl chloride was allowed to react with pentaerythritol in the molar ratio of 4:1. The reaction gave a 78% yield of white crystalline product having a melting point of 125°-126.5° C. and the infrared spectrum was a consistent with the expected tetraester with no hydroxyl band and an ester carbonyl band at 5.85μ (s).

Sources & evidence

ORD record: ord-42dfaebc9cba4c71a19c8c1f54691fa8
Source dataset: uspto-grants-1982_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04342875

Linked notes

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