2-(Bromomethyl)tetrahydro-2H-pyran → HCID 59352081, compound

HRID 1407655Notes

Reaction equation

HRID 1407655 reaction equation
[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[C:3]2([C:21]3[C:12](=[CH:13][C:14]4[O:19][CH2:18][CH2:17][O:16][C:15]=4[CH:20]=3)[O:11][CH2:10]2)[C:2]1=[O:22].Br[CH2:24][C:25]1[CH:34]=[CH:33][C:28]2[O:29][CH2:30][CH2:31][O:32][C:27]=2[CH:26]=1.BrCC1CCCCO1>>[O:29]1[C:28]2[CH:33]=[CH:34][C:25]([CH2:24][N:1]3[C:9]4[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=4)[C:3]4([C:21]5[C:12](=[CH:13][C:14]6[O:19][CH2:18][CH2:17][O:16][C:15]=6[CH:20]=5)[O:11][CH2:10]4)[C:2]3=[O:22])=[CH:26][C:27]=2[O:32][CH2:31][CH2:30]1

Participants

4

Reactant 3

HCID 1419172-(Bromomethyl)tetrahydro-2H-pyranHCID 111071286-(Bromomethyl)-2,3-dihydrobenzo[b][1,4]dioxineHCID 58224164Spiro[furo[2,3-g]-1,4-benzodioxin-8(7H),3'-[3H]indol]-2'(1'H)-one, 2,3-dihydro

Product 1

HCID 59352081HCID 59352081, compound

Procedure

Following the procedure as described in EXAMPLE 4 and making non-critical variations using 2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3′-indol]-2′(1′H)-one to replace 5,6-dihydrospiro[benzo[1,2-b:5,4-b′]difuran-3,3′-indol]-2″(1′H)-one, and 6-(bromomethyl)-2,3-dihydrobenzo[b][1,4]dioxine (Capilla, A. S. et al., Tetrahedron, (2001), 57:8297-304) to replace 2-(bromomethyl)tetrahydro-2H-pyran, 1′-(2,3-dihydro-1,4-benzodioxin-6-ylmethyl)-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3′-indol]-2′(1′H)-one was obtained (100%) as a colorless solid: mp 120-123° C. (hexanes/diethyl ether); 1H NMR (300 MHz, CDCl3) δ7.20 (ddd, J=7.8, 7.5, 1.2 Hz, 1H), 7.15 (dd, J=7.4, 0.8 Hz, 1H), 7.01 (ddd, J=7.5, 7.4, 0.7 Hz, 1H), 6.85-6.79 (m, 4H), 6.50 (s, 1H), 6.24 (s, 1H), 4.93 (d, J=8.7 Hz, 1H), 4.92 (d, J=15.5 Hz, 1H), 4.76 (d, J=15.5 Hz, 1H), 4.65 (d, J=8.7 Hz, 1H), 4.23 (s, 4H), 4.22-4.17 (m, 2H), 4.14-4.10 (m, 2H); 13C NMR (75 MHz, CDCl3) δ177.5, 155.4, 144.7, 143.8, 143.3, 142.3, 138.4, 132.4, 129.0, 128.9, 123.9, 123.4, 121.2, 120.5, 117.8, 116.5, 111.8, 109.5, 99.5, 80.4, 64.6, 64.44, 64.41, 64.0, 58.2, 43.8; MS (ES+) m/z 444.0 (M+1).

Sources & evidence

ORD record
ord-62bd3e9bf8d34609ae1199b9d3ed3377
Source dataset
uspto-grants-2014_12
Patent number
US08916580B2

Reaction notes

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