Benzyl isocyanate → HCID 58997135, compound

HRID 251130Notes

Reaction equation

HRID 251130 reaction equation
[CH3:1][C:2]1[C:3]([CH2:8][N:9]([CH2:16][C:17]2[C:22]([CH3:23])=[CH:21][CH:20]=[CH:19][N:18]=2)[CH:10]2[CH2:15][CH2:14][NH:13][CH2:12][CH2:11]2)=[N:4][CH:5]=[CH:6][CH:7]=1.[CH2:24]([N:31]=[C:32]=[O:33])[C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1>C(Cl)Cl>[CH2:24]([NH:31][C:32]([N:13]1[CH2:14][CH2:15][CH:10]([N:9]([CH2:16][C:17]2[C:22]([CH3:23])=[CH:21][CH:20]=[CH:19][N:18]=2)[CH2:8][C:3]2[C:2]([CH3:1])=[CH:7][CH:6]=[CH:5][N:4]=2)[CH2:11][CH2:12]1)=[O:33])[C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1

Participants

4

Reactant 2

HCID 76639Benzyl isocyanateHCID 58996965Bis-(3-methyl-pyridin-2-ylmethyl)-piperidin-4-yl-amine

Product 1

HCID 58997135HCID 58997135, compoundYield 95.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a cold (0° C.), stirred solution of COMPOUND 249 (69 mg, 0.22 mmol) in CH2Cl2 (2 mL) was added benzyl isocyanate (35 μL, 0.28 mmol). After 15 minutes, the cooling bath was removed and the reaction mixture was warmed to room temperature. After an additional 45 minutes, the mixture was concentrated under reduced pressure. Purification of the crude material by radial chromatography on silica gel (1 mm plate, 25:1:1 CH2Cl2-MeOH—NH4OH) provided 93 mg (87%) of COMPOUND 271 as a white solid. 1H NMR (CDCl3) δ 1.60-1.71 (m, 2H), 1.88-1.93 (m, 2H), 2.08 (s, 6H), 2.61-2.69 (m, 3H), 3.81 (s, 4H), 4.05 (d, 2H, J=12.9 Hz), 4.42 (d, 2H, J=5.4 Hz), 4.74 (br t, 1H, J=5.4 Hz), 7.08 (dd, 2H, J=7.5, 5.1 Hz), 7.25-7.38 (m, 7H), 8.34 (d, 2H, J=3.6 Hz); 13C NMR (CDCl3) δ 18.36, 27.35, 44.58, 45.30, 54.99, 57.83, 122.81, 127.47, 128.03, 128.87, 133.82, 138.45, 140.13, 146.20, 157.52, 157.83; ES-MS m/z 444 (M+H). Anal. Calcd. For C27H33N5O.0.4.CH2Cl2: C, 68.91; H, 7.13; N, 14.66. Found: C, 69.19; H, 7.37; N, 14.64.

Workup

  1. customthe cooling bath was removed
  2. waitAfter an additional 45 minutes
  3. concentrationthe mixture was concentrated under reduced pressure
  4. customPurification of the crude material by radial chromatography on silica gel (1 mm plate, 25:1:1 CH2Cl2-MeOH—NH4OH)

Sources & evidence

ORD record
ord-3af868e3a8ba43e1b6252853ff285f9f
Source dataset
uspto-grants-2011_01
Patent number
US07863293B2

Reaction notes

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