Allyl Alcohol → HCID 86588599, compound
Reaction equation
[C:1]([C:4]1[C:15]([N+:16]([O-:18])=[O:17])=[CH:14][C:7]([O:8][CH2:9][CH2:10][C:11]([OH:13])=[O:12])=[C:6]([O:19][CH3:20])[CH:5]=1)([OH:3])=[O:2].O.[C:22]1(C)[CH:27]=CC(S(O)(=O)=O)=C[CH:23]=1.C(O)C=C>>[C:1]([C:4]1[C:15]([N+:16]([O-:18])=[O:17])=[CH:14][C:7]([O:8][CH2:9][CH2:10][C:11]([OH:13])=[O:12])=[C:6]([O:19][CH3:20])[CH:5]=1)([OH:3])=[O:2].[CH3:27][CH:22]=[CH2:23]Participants
Procedure
A mixture of 3-(4-carboxy-2-methoxy-5-nitrophenoxy)propanoic acid (153) (20 g, 74.3 mmol) and p-toluene sulphonic acid monohydrate (2.3 g, 7.4 mmol) in allyl alcohol (240 mL, 3.5 mol) was refluxed for 7 hours then allowed to cool. The allyl alcohol was then removed in vacuo, and the residue triturated with dilute HCl acid and collected by filtration. This solid was taken up in EtOAc, and the resulting solution washed with water and brine and dried over sodium sulphate. Evaporation in vacuo afforded 154 as a white solid (19.27 g, 84%): mp 128-130° C.; 1H-NMR (CDCl3): δ 2.92 (t, 2H, J=6.35 Hz); 3.94 (s, 3H); 4.38 (t, 2H, J=6.41 Hz); 4.65 (d, 2H, J=5.61 Hz); 5.27 (dd, 1H, J1=1.28 Hz, J2=19.42 Hz); 5.33 (dd, 1H, J1=1.28 Hz, J=17.04 Hz); 5.92 (m, 1H); 7.15 (s, 1H); 7.45 (s, 1H); 13C NMR (67.8 MHz, CDCl3): δ 34.1, 56.5, 65.0, 65.4, 108.5, 111.3, 118.3, 122.9, 131.8, 141.1, 149.1, 152.6, 167.1, 170.0; IR (Nujol); ν 1730, 1630, 1550, 1430, 1390, 1290, 1230, 1190, 1170, 1070, 1030, 1010 cm−1; MS (EI) m/z (relative intensity): 325 (M+., 19), 251 (3), 213 (2), 196 (3), 211 (3), 113 (19), 91 (4), 71 (9), 55 (6); HRMS: calcd. for C14H15NO6 325.0798, found 232.0773.
Workup
- temperaturewas refluxed for 7 hours
- temperatureto cool
- customThe allyl alcohol was then removed in vacuo
- customthe residue triturated with dilute HCl acid
- filtrationcollected by filtration
- washthe resulting solution washed with water and brine
- dry with materialdried over sodium sulphate
- customEvaporation in vacuo
Sources & evidence
- ORD record
- ord-d1d2b3657fef47889371939b018c857f
- Source dataset
- uspto-grants-2006_05
- Patent number
- US07049311B1
Reaction notes
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