1-Propanesulfonyl chloride → tert-Butyl[1-(3,4-dichlorobenzyl)-7-{[(propylsulfonyl)amino]methyl}-1,2,3,4-tetrahydronaphthalen-2-yl]carbamate

HRID 2177084Notes

Reaction equation

HRID 2177084 reaction equation
[C:1]([O:5][C:6](=[O:29])[NH:7][CH:8]1[CH2:17][CH2:16][C:15]2[C:10](=[CH:11][C:12]([CH2:18][NH2:19])=[CH:13][CH:14]=2)[CH:9]1[CH2:20][C:21]1[CH:26]=[CH:25][C:24]([Cl:27])=[C:23]([Cl:28])[CH:22]=1)([CH3:4])([CH3:3])[CH3:2].[CH2:30]([S:33](Cl)(=[O:35])=[O:34])[CH2:31][CH3:32]>ClCCl.CN(C)C1C=CN=CC=1>[C:1]([O:5][C:6](=[O:29])[NH:7][CH:8]1[CH2:17][CH2:16][C:15]2[C:10](=[CH:11][C:12]([CH2:18][NH:19][S:33]([CH2:30][CH2:31][CH3:32])(=[O:35])=[O:34])=[CH:13][CH:14]=2)[CH:9]1[CH2:20][C:21]1[CH:26]=[CH:25][C:24]([Cl:27])=[C:23]([Cl:28])[CH:22]=1)([CH3:4])([CH3:2])[CH3:3]

Participants

5

Reactant 2

HCID 662791-Propanesulfonyl chlorideHCID 59547750tert-Butyl [7-(aminomethyl)-1-(3,4-dichlorobenzyl)-1,2,3,4-tetrahydronaphthalen-2-yl]carbamate

Product 1

HCID 57471202tert-Butyl[1-(3,4-dichlorobenzyl)-7-{[(propylsulfonyl)amino]methyl}-1,2,3,4-tetrahydronaphthalen-2-yl]carbamate

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent2×

Procedure

tert-Butyl[7-(aminomethyl)-1-(3,4-dichlorobenzyl)-1,2,3,4-tetrahydronaphthalen-2-yl]carbamate (120 mg, 0.276 mmol, cf. Example 38) was dissolved in dichloromethane (5 mL). 4-Dimethylaminopyridine (35 mg, 0.289 mmol) was added. After stirring at room temperature for 5 min propane-1-sulfonyl chloride (39 mg, 0.031 mmol) was added and stirring was continued over night. The reaction mixture was diluted with dichloromethane and washed successively with 0.5 N hydrochloric acid (2×2 mL) and saturated NaHCO3 (1×2 mL). The organic phase was dried (MgSO4) and concentrated in vacuo. The crude product was used for the next step without further purification. Yield: 125 mg (0.231 mmol, 84%).

Workup

  1. additionwas added
  2. waitwas continued over night
  3. washwashed successively with 0.5 N hydrochloric acid (2×2 mL) and saturated NaHCO3 (1×2 mL)
  4. dry with materialThe organic phase was dried (MgSO4)
  5. concentrationconcentrated in vacuo
  6. customThe crude product was used for the next step without further purification

Sources & evidence

ORD record
ord-b4360ef6ebbd4a38a0dfac4281bfe2a3
Source dataset
uspto-grants-2015_06
Patent number
US09067871B2

Reaction notes

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