4-Toluenesulfonyl chloride → 6,7-dihydro-5H-benzo[6,7]cyclohepta[1,2-d]pyrimidin-4-yl 4-methylbenzenesulfonate

HRID 1027903Notes

Reaction equation

HRID 1027903 reaction equation
[N:1]1[C:6]2[C:7]3[CH:15]=[CH:14][CH:13]=[CH:12][C:8]=3[CH2:9][CH2:10][CH2:11][C:5]=2[C:4](=[O:16])[NH:3][CH:2]=1.[C:17]1([CH3:27])[CH:22]=[CH:21][C:20]([S:23](Cl)(=[O:25])=[O:24])=[CH:19][CH:18]=1.C(N(CC)CC)C>CN(C1C=CN=CC=1)C.C(Cl)Cl>[CH3:27][C:17]1[CH:22]=[CH:21][C:20]([S:23]([O:16][C:4]2[C:5]3[CH2:11][CH2:10][CH2:9][C:8]4[CH:12]=[CH:13][CH:14]=[CH:15][C:7]=4[C:6]=3[N:1]=[CH:2][N:3]=2)(=[O:25])=[O:24])=[CH:19][CH:18]=1

Participants

6

Reactant 3

HCID 73974-Toluenesulfonyl chlorideHCID 8471TriethylamineHCID 1358187063,5,6,7-tetrahydro-4H-benzo[6,7]cyclohepta[1,2-d]pyrimidin-4-one

Product 1

HCID 866219036,7-dihydro-5H-benzo[6,7]cyclohepta[1,2-d]pyrimidin-4-yl 4-methylbenzenesulfonate

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

The product from Example 118B (154 mg, 0.72 mmol), p-toluenesulfonyl chloride (278 mg, 1.44 mmol), DMAP (17 mg, 0.14 mmol) in CH2Cl2 (20 mL) was treated with triethylamine (0.25 mL, 1.8 mmol) and stirred at room temperature for 16 hours. The mixture was concentrated under reduced pressure and the residue was chromatographed on silica gel eluting with 40% EtOAc/hexanes to provide the title compound. 1H NMR (CDCl3) δ 2.18-2.40 (m, 4H), 2.48 (d, 3H), 2.51-2.58 (m, 2H), 7.25-7.29 (m, 1H), 7.35-7.45 (m, 4H), 7.66-7.73 (m, J=17.63 Hz, 1H), 8.07 (dd, J=15.60, 8.48 Hz, 2H), 8.85 (d, J=8.48 Hz, 1H). MS (M+H)+ m/z 367

Workup

  1. concentrationThe mixture was concentrated under reduced pressure
  2. customthe residue was chromatographed on silica gel eluting with 40% EtOAc/hexanes

Sources & evidence

ORD record
ord-ed826acc39c14dedbbaf25dae4a106d7
Source dataset
uspto-grants-2014_05
Patent number
US08735411B2

Reaction notes

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