Benzyl Chloride → Methyl 2,3-bis(benzyloxy)benzoate

HRID 1443830Notes

Reaction equation

[CH3:1][O:2][C:3](=[O:12])[C:4]1[CH:9]=[CH:8][CH:7]=[C:6]([OH:10])[C:5]=1[OH:11].[CH2:13](Cl)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1>>[CH3:1][O:2][C:3](=[O:12])[C:4]1[CH:9]=[CH:8][CH:7]=[C:6]([O:10][CH2:13][C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C:5]=1[O:11][CH2:3][C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1

Participants

Reactant 2

HCID 7503Benzyl Chloride

HCID 75484Methyl 2,3-Dihydroxybenzoate

Product 1

HCID 10665397Methyl 2,3-bis(benzyloxy)benzoate

Procedure

In one embodiment, the compounds can be prepared as shown in Scheme II. A dihydroxy benzoic acid methyl ester is reacted with benzyl chloride, to produce a Bis-benzyloxy benzoic acid methyl ester (1). The Bis-benzyloxy benzoic acid methyl ester can then be heated with LiOH to give a Bis-benzyloxy benzoic acid (2). The Bis-benzyloxy benzoic acid (2) is then reacted with an aminophenyl to produce a phenyl-benzamide (3). The phenyl-benzamide (3) is then reacted with hydrazine to give a triazol (4). The hydroxy groups can then be unprotecxted in the presence of palladium on charcoal to give the final product.

Workup

customIn one embodiment, the compounds can be prepared

Sources & evidence

ORD record: ord-411325b80b4441f69b78dcc0111f7da7
Source dataset: uspto-grants-2010_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07662813B2

Reaction notes

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