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

HRID 1881349Notes

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 5a 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 unprotected 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-61532fe7eede4eb6a4687af2f50e9176
Source dataset: uspto-grants-2012_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08318790B2

Reaction notes

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