Benzo[b]furan-2-boronic acid → HCID 21884415, compound

Reaction equation

[N+:1]([C:4]1[CH:5]=[C:6]([C:12]2[O:13][C:14]3[CH:20]=[CH:19][C:18](Br)=[CH:17][C:15]=3[N:16]=2)[C:7]([O:10][CH3:11])=[CH:8][CH:9]=1)([O-:3])=[O:2].[O:22]1[C:26]2[CH:27]=[CH:28][CH:29]=[CH:30][C:25]=2[CH:24]=[C:23]1B(O)O>>[N+:1]([C:4]1[CH:5]=[C:6]([C:12]2[O:13][C:14]3[CH:20]=[CH:19][C:18]([C:23]4[O:22][C:26]5[CH:27]=[CH:28][CH:29]=[CH:30][C:25]=5[CH:24]=4)=[CH:17][C:15]=3[N:16]=2)[C:7]([O:10][CH3:11])=[CH:8][CH:9]=1)([O-:3])=[O:2]

Participants

Reactant 2

HCID 2776266Benzo[b]furan-2-boronic acid

HCID 21884587HCID 21884587, compound

Product 1

HCID 21884415HCID 21884415, compound

Procedure

Prepared by the method of Example 15d), from 2-(3-nitro-6-methoxyphenyl)-5-bromobenzoxazole (400 mg, 1.14 mmol) and 2-benzofuranboronic acid (278 mg, 1.71 mmol) the subtitle compound was obtained (342 mg, 61%). The product was used directly in the next step without purification

Sources & evidence

ORD record: ord-6a7d855c47384dde9fd6f9ecfb5b9c13
Source dataset: uspto-grants-2006_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07138425B2

Reaction notes

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