Orm-10103 → 2-(2-Methoxyphenyl)-6-(5-nitropyridin-2-yloxy)chroman-4-ol

HRID 31334Notes

Reaction equation

HRID 31334 reaction equation
[N+:1]([C:4]1[CH:5]=[CH:6][C:7](OC2C=C3C(=CC=2)OC(C2C=CC=CC=2)CC3)=[N:8][CH:9]=1)([O-:3])=[O:2].[CH3:27][O:28][C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=1[CH:35]1[CH2:44][CH:43]([OH:45])[C:42]2[C:37](=[CH:38][CH:39]=[C:40]([OH:46])[CH:41]=2)[O:36]1>>[CH3:27][O:28][C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=1[CH:35]1[CH2:44][CH:43]([OH:45])[C:42]2[C:37](=[CH:38][CH:39]=[C:40]([O:46][C:7]3[CH:6]=[CH:5][C:4]([N+:1]([O-:3])=[O:2])=[CH:9][N:8]=3)[CH:41]=2)[O:36]1

Participants

3

Reactant 2

HCID 17978512Orm-10103HCID 179785392-(2-Methoxyphenyl)chroman-4,6-diol

Product 1

HCID 179785402-(2-Methoxyphenyl)-6-(5-nitropyridin-2-yloxy)chroman-4-ol

Procedure

2-(2-Methoxyphenyl)-6-(5-nitropyridin-2-yloxy)chroman-4-ol was prepared as described for 5-nitro-2-(2-phenylchroman-6-yloxy)pyridine in Example 1(b) starting from 2-(2-methoxyphenyl)chroman-4,6-diol. 1H NMR (400 MHz, d6-DMSO) δ: 9.04 (d, 1H, J 2.9 Hz), 8.61 (dd, 1H, J 9.1, 2.9 Hz), 7.49 (dd, 1H, J 7.6, 1.7 Hz), 7.34 (dt, 1H, J 8.3, 7.5, 1.7 Hz), 7.24 (d, 1H, J 2.8 Hz), 7.22 (d, 1H, J 9.1 Hz), 7.07 (d, 1H, J 8.3 Hz), 7.03 (d, 1H, J 7.5 Hz), 7.01 (dd, 1H, J 8.7, 2.8 Hz), 6.88 (d, 1H, J 8.7 Hz), 5.62 (d, 1H, J 6.3 Hz), 5.52 (d, 1H, J 10.4 Hz), 4.93-4.99 (m, 1H), 3.84 (s, 3H), 2.30-2.35 (m, 1H), 1.85-1.94 (m, 1H).

Sources & evidence

ORD record
ord-8cdaac6ab8354ac28b0306ca8162a6c0
Source dataset
uspto-grants-2008_09
Patent number
US07425568B2

Reaction notes

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