2-Methoxybenzyl alcohol → HCID 54532447, compound

HRID 1459622Notes

Reaction equation

HRID 1459622 reaction equation
[O:1]([CH2:9][CH2:10][CH:11]1[C:16](=[O:17])[NH:15][C:14]2[CH:18]=[CH:19][CH:20]=[CH:21][C:13]=2[O:12]1)[Si](C(C)(C)C)(C)C.[CH3:22][O:23][C:24]1[CH:31]=[CH:30][CH:29]=[CH:28][C:25]=1[CH2:26]O>>[OH:1][CH2:9][CH2:10][CH:11]1[C:16](=[O:17])[N:15]([CH2:26][C:25]2[CH:28]=[CH:29][CH:30]=[CH:31][C:24]=2[O:23][CH3:22])[C:14]2[CH:18]=[CH:19][CH:20]=[CH:21][C:13]=2[O:12]1

Participants

3

Reactant 2

HCID 691542-Methoxybenzyl alcoholHCID 120480202-[2-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]ethyl]-2H-1,4-benzoxazin-3(4H)-one

Product 1

HCID 54532447HCID 54532447, compound

Procedure

Prepared from 2-(2-tert-butyldimethylsiloxyethyl)-3,4-dihydro-3-oxo-2H-1,4-benzoxazine by methods F and G, alkylating with the methanesulfonate ester of 2-methoxybenzyl alcohol, in 47% overall yield as a light yellow gum after flash chromatography, eluting with EtOAc/hexanes, IR (Neat) 3436, 2941, 1583, 1683, 1501, 1466, 1403, 1281, 1246, 1113, 1052, 751 cm-1 ; 1H NMR (CDCl3) δ 2.18-2.36 (m, 2H), 2.39 (br t, J=6.0 Hz, 1H), 3.90 (s, 3H), 3.92 (br q, J=5.5 Hz, 2H), 4.85 (dd, J=7.4, 5.7 Hz, 1H), 5.15 (s, 2H), 6.81-7.03 (m, 7H), 7.23 (td, J=8.3, 1.7 Hz, 1H); MH+ at m/z=314; Anal. Calc'd for C18H19NO4.0.2 H2O: C, 68.21; H, 6.17; N, 4.42. Found: C, 68.36; H, 6.18; N, 4.36.

Workup

  1. customoverall yield as a light yellow gum after flash chromatography
  2. washeluting with EtOAc/hexanes, IR (Neat) 3436, 2941, 1583, 1683, 1501, 1466, 1403, 1281, 1246, 1113, 1052, 751 cm-1

Sources & evidence

ORD record
ord-bfe49b715bf1498dae7a2c509344e7a7
Source dataset
uspto-grants-1998_12
Patent number
US05854242

Reaction notes

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