Acetyl chloride → HCID 15646699, compound

HRID 1087511Notes

Reaction equation

[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[C:3]([C:10]2[CH2:11][CH2:12][N:13]([CH2:16][CH2:17][CH2:18][N:19]3[C:23]4[CH:24]=[CH:25][CH:26]=[C:27]5[CH:28]=[CH:29][CH:30]=[C:21]([C:22]=45)[S:20]3(=[O:32])=[O:31])[CH2:14][CH:15]=2)=[CH:2]1.[H-].[Na+].[C:35](Cl)(=[O:37])[CH3:36]>CN(C)C=O.O1CCOCC1>[C:35]([N:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[C:3]([C:10]2[CH2:15][CH2:14][N:13]([CH2:16][CH2:17][CH2:18][N:19]3[C:23]4[CH:24]=[CH:25][CH:26]=[C:27]5[CH:28]=[CH:29][CH:30]=[C:21]([C:22]=45)[S:20]3(=[O:32])=[O:31])[CH2:12][CH:11]=2)=[CH:2]1)(=[O:37])[CH3:36]

Participants

Conditions

Temperature: 20 °C

Procedure

The experiment is carried out as in Example 44, starting with 2-{3-[4-(3-indolyl)-1,2,3,6-tetrahydro-1-pyridyl]propyl}naphtho[1,8-cd]isothiazole 1,1-dioxide (11 g) in dimethylformamide (150 cc), acetyl chloride (1.95 cc) in dioxane (50 cc) and sodium hydride (1.3 g as a 50% dispersion in vaseline oil). The mixture is stirred for 15 hours at a temperature of about 20° C. After purification by flash-chromatography on a silica column, under a current of argon at medium pressure (0.5-1.5 bar), firstly with dichloromethane as eluant and then with ethyl acetate as eluant, then recrystallization from boiling acetonitrile (45 cc), 2-{3-[4-(1-acetyl-3-indolyl)-1,2,3,6-tetrahydro-1-pyridyl]propyl}naphtho[1,8cd]isothiazole 1,1-dioxide (1.3 g) is obtained, m.p. 163° C.

Workup

customAfter purification by flash-chromatography on a silica column
customunder a current of argon at medium pressure (0.5-1.5 bar), firstly with dichloromethane as eluant and then with ethyl acetate as eluant, then recrystallization

Sources & evidence

ORD record: ord-d93ec6f3c3384fd88cd960465c90fa0c
Source dataset: uspto-grants-1991_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05036075

Reaction notes

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