Triethylamine → HCID 57961752, compound

HRID 541798Notes

Reaction equation

HRID 541798 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([NH:8][C:9](=[O:15])[O:10][C:11]([CH3:14])([CH3:13])[CH3:12])[CH:5]=[CH:6][CH:7]=1.C(N(CC)CC)C.[N+:23]([C:26]1[CH:27]=[C:28]([CH:32]=[CH:33][CH:34]=1)[C:29](Cl)=[O:30])([O-:25])=[O:24].C([O-])([O-])=O.[Na+].[Na+]>O1CCCC1>[N+:23]([C:26]1[CH:27]=[C:28]([CH:32]=[CH:33][CH:34]=1)[C:29]([NH:1][C:2]1[CH:3]=[C:4]([NH:8][C:9](=[O:15])[O:10][C:11]([CH3:12])([CH3:14])[CH3:13])[CH:5]=[CH:6][CH:7]=1)=[O:30])([O-:25])=[O:24]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 8495Benzoyl chloride, 3-nitro-HCID 10340Sodium CarbonateHCID 12877220tert-butyl N-(3-aminophenyl)carbamate

Product 1

HCID 57961752HCID 57961752, compoundYield 99.1%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

To a stirring solution of tert-butyl (3-aminophenyl)carbamate (2.00 g, 9.6 mmol) and triethylamine (1.40 mL, 10 mol) in dry tetrahydrofuran (27.3 mL) at 0° C. was slowly added a solution of 3-nitrobenzoyl chloride (1.87 g, 10.1 mmol) in tetrahydrofuran (7.8 mL). The resulting mixture was slowly warmed up to rt and stirred for one additional hour at rt. The reaction mixture was treated with Na2CO3 (aq). The aqueous layer was extracted with EtOAc three times. The combined organic layers were dried, filtered and concentrated to give the desired product as a white powder (3.4 g, 99%). LCMS for C18H19N3O5 (M-tBu+H)+: m/z=302.0. 1H NMR (400 MHz, CD3OD): δ 8.79 (t, J=2.0 Hz, 1H), 8.43 (ddd, J=8.0, 2.0, 1.2 Hz, 1H), 8.31 (ddd, J=6.4, 2.4, 1.2 Hz, 1H), 7.87 (t, J=2.1 Hz, 1H), 7.77 (t, J=8.0 Hz, 1H), 7.60 (ddd, J=8.0, 4.0, 2.4, 1H), 7.25 (t, J=8.0 Hz, 1H), 7.19 (d, J=1.2 Hz, 1H), 1.52 (s, 9H).

Workup

  1. extractionThe aqueous layer was extracted with EtOAc three times
  2. customThe combined organic layers were dried
  3. filtrationfiltered
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-53227086c83d45ff954ad96a0de501db
Source dataset
uspto-grants-2014_10
Patent number
US08871753B2

Reaction notes

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