1-(diphenylmethyl)-3-(2-hydroxy-4-methoxy-5-methylphenyl)-1,3-dihydro-2H-indol-2-one → 1'-(diphenylmethyl)-4',6'-dimethoxy-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3'-indol]-2'(1'H)-one

HRID 1407613Notes

Reaction equation

HRID 1407613 reaction equation
[C:1]1([CH:7]([C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)[N:8]2[C:16]3[C:11](=[C:12]([O:19][CH3:20])[CH:13]=[C:14]([O:17][CH3:18])[CH:15]=3)[CH:10]([C:21]3[C:30]([OH:31])=[CH:29][C:24]4[O:25][CH2:26][CH2:27][O:28][C:23]=4[CH:22]=3)[C:9]2=[O:32])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:39]1(C(C2C=CC=CC=2)N2C3C(=CC=CC=3)C(C3C=C(C)C(OC)=CC=3O)C2=O)C=CC=CC=1>>[C:33]1([CH:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[N:8]2[C:16]3[C:11](=[C:12]([O:19][CH3:20])[CH:13]=[C:14]([O:17][CH3:18])[CH:15]=3)[C:10]3([C:21]4[C:30](=[CH:29][C:24]5[O:25][CH2:26][CH2:27][O:28][C:23]=5[CH:22]=4)[O:31][CH2:39]3)[C:9]2=[O:32])[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1

Participants

3

Reactant 2

HCID 673563761-(diphenylmethyl)-3-(2-hydroxy-4-methoxy-5-methylphenyl)-1,3-dihydro-2H-indol-2-oneHCID 685992271-(diphenylmethyl)-3-(7-hydroxy-2,3-dihydro-1,4-benzodioxin-6-yl)-4,6-dimethoxy-1,3-dihydro-2H-indol-2-one

Product 1

HCID 593523901'-(diphenylmethyl)-4',6'-dimethoxy-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3'-indol]-2'(1'H)-one

Procedure

Following the procedure as described in EXAMPLE 2 and making non-critical variations using 1-(diphenylmethyl)-3-(7-hydroxy-2,3-dihydro-1,4-benzodioxin-6-yl)-4,6-dimethoxy-1,3-dihydro-2H-indol-2-one to replace 1-(diphenylmethyl)-3-(2-hydroxy-4-methoxy-5-methylphenyl)-1,3-dihydro-2H-indol-2-one, 1′-(diphenylmethyl)-4′,6′-dimethoxy-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3′-indol]-2′(1′H)-one was obtained (96%) as a colorless solid: 1H NMR (300 MHz, CDCl3) δ7.41-7.24 (m, 10H), 6.97 (s, 1H), 6.42 (s, 1H), 6.19 (s, 1H), 6.04 (d, J=1.8 Hz, 1H), 5.69 (d, J=1.8 Hz, 1H), 4.81 (ABq, 2H), 4.21-4.06 (m, 4H), 3.62 (s, 3H), 3.47 (s, 3H); MS (ES+) m/z 522.1 (M+1).

Sources & evidence

ORD record
ord-fb8f9a563947437ea7d31d6540b203be
Source dataset
uspto-grants-2014_12
Patent number
US08916580B2

Reaction notes

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