Methyl 4-chlorobenzoate → HCID 11232850, compound

HRID 1795378Notes

Reaction equation

HRID 1795378 reaction equation
Cl[C:2]1[CH:11]=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:4][CH:3]=1.[CH2:12]([Mg]Cl)[CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH3:25]>C1COCC1.CN1C(=O)CCC1>[CH2:25]([C:2]1[CH:11]=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:4][CH:3]=1)[CH2:24][CH2:23][CH2:22][CH2:21][CH2:20][CH2:19][CH2:18][CH2:17][CH2:16][CH2:15][CH2:14][CH2:13][CH3:12]

Participants

5

Reactant 2

HCID 14307Methyl 4-chlorobenzoateHCID 178443146HCID 178443146, compound

Product 1

HCID 11232850HCID 11232850, compoundYield 92%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 13387N-methyl-2-pyrrolidoneSolvent

Procedure

To a solution of methyl 4-chlorobenzoate (300 mg, 1.76 mmol) and Fe(acac)3 (71 mg, 0.2 mmol) in THF (7 mL) and NMP (1.1 mL) at −60° C. is added a solution of C14H29MgCl (1M in THF, 2.3 mL). The mixture immediately turns black and becomes viscous after 3 min. Work-up as described above provides methyl 4-(tetradecyl)benzoate as a low-melting solid (92%). Mp=28–29° C. 1H NMR (300 MHz, CDCl3): δ 7.92 (dd, 2H, J=6.5, 1.8 Hz), 7.21 (dd, 2H, J=6.4, 1.7 Hz), 3.87 (s, 3H), 2.63 (t, 2H, J=7.7 Hz), 1.60 (m, 2H), 1.38–1.06 (m, 24H), 0.86 (t, 3H, J=6.7 Hz). 13C NMR (75 MHz, CDCl3): δ 167.6, 148.9, 130.0, 128.8, 128.0, 52.3, 36.4, 32.3, 31.5, 30.09, 30.07, 30.05, 30.00. 29.95, 29.9, 29.8, 29.7, 23.1, 14.5. IR: 3091, 3061, 3031, 2925, 2854, 1726, 1611, 1574, 1510, 1466, 1435, 1415, 1377, 1309, 1277, 1191, 1178, 1109, 1021, 970, 854, 763, 722, 704 cm−1. MS m/z (rel. intensity) 332 (100, [M+]), 301 (1), 163 (34), 150 (60), 149 (29).

Sources & evidence

ORD record
ord-c2911f6462eb484a9895a45e80ba80b2
Source dataset
uspto-grants-2006_04
Patent number
US07026478B2

Reaction notes

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