3-Nitrophenylboronic Acid → 4,4-Dimethyl-6-(3-nitrophenyl)-1,4-dihydrobenzo[d][1,3]oxazin-2-one

HRID 2304520Notes

Reaction equation

HRID 2304520 reaction equation
I[C:2]1[CH:14]=[CH:13][C:5]2[NH:6][C:7](=[O:12])[O:8][C:9]([CH3:11])([CH3:10])[C:4]=2[CH:3]=1.[N+:15]([C:18]1[CH:19]=[C:20](B(O)O)[CH:21]=[CH:22][CH:23]=1)([O-:17])=[O:16]>>[CH3:10][C:9]1([CH3:11])[O:8][C:7](=[O:12])[NH:6][C:5]2[CH:13]=[CH:14][C:2]([C:22]3[CH:21]=[CH:20][CH:19]=[C:18]([N+:15]([O-:17])=[O:16])[CH:23]=3)=[CH:3][C:4]1=2

Participants

3

Reactant 2

HCID 16773-Nitrophenylboronic AcidHCID 12967821HCID 12967821, compound

Product 1

HCID 99660254,4-Dimethyl-6-(3-nitrophenyl)-1,4-dihydrobenzo[d][1,3]oxazin-2-one

Procedure

4,4-Dimethyl-6-(3-nitrophenyl)-1,4-dihydrobenzo[d][1,3]oxazin-2-one was prepared, from 6-iodo-4,4-dimethyl-1,4-dihydro-benzo[d][1,3]oxazin-2-one and 3-nitrophenyl boronic acid according to the procedure of Example 4, as a yellowish solid: mp 244-245° C.; 1H-NMR (DMSO-d6) δ10.38 (s, 1H, D2O exchangeable), 8.47 (s, 1H), 8.14-8.20 (m, 2H), 7.70-7.76 (m, 3H), 7.01 (d, 1H, J=8.1 Hz), 1.68 (s, 6H); MS (EI) m/z 297([M−H]−, 100%); Anal. Calc. For C16H14N2O4: C, 64.42; H, 4.73; N, 9.39. Found: C, 63.93; H, 4.91; N, 8.71.

Sources & evidence

ORD record
ord-ad8d217cdc634e93aa26430ce33f5d2f
Source dataset
uspto-grants-2002_08
Patent number
US06436929B1

Reaction notes

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