Triethylamine → HCID 19817081, compound

HRID 1087509Notes

Reaction equation

Cl[CH2:2][CH2:3][CH2:4][N:5]1[C:9]2[CH:10]=[CH:11][CH:12]=[C:13]3[CH:14]=[CH:15][CH:16]=[C:7]([C:8]=23)[S:6]1(=[O:18])=[O:17].C(N(CC)CC)C.[Cl:26][C:27]1[CH:32]=[CH:31][C:30]([CH:33]2[CH2:38][CH2:37][NH:36][CH2:35][CH2:34]2)=[CH:29][CH:28]=1>C1(C)C=CC=CC=1>[Cl:26][C:27]1[CH:32]=[CH:31][C:30]([CH:33]2[CH2:34][CH2:35][N:36]([CH2:2][CH2:3][CH2:4][N:5]3[C:9]4[CH:10]=[CH:11][CH:12]=[C:13]5[CH:14]=[CH:15][CH:16]=[C:7]([C:8]=45)[S:6]3(=[O:18])=[O:17])[CH2:37][CH2:38]2)=[CH:29][CH:28]=1

Participants

Conditions

Temperature: 20 °C

Procedure

The experiment is carried out as in Example 1, starting with 2-(3-chloropropyl)naphtho[1,8-cd]isothiazole 1,1-dioxide (2.81 g), triethylamine (1.4 cc) and 4-(4-chlorophenyl)piperidine (1.96 g) in toluene (30 cc). The mixture is heated for 8 hours at boiling point, then cooled to a temperature of about 20° C. Stirring is continued for 8 hours at this temperature. After purification by flash-chromatography on a silica column, under a current of argon at medium pressure (0.5-1.5 bar) with ethyl acetate as eluant, and recrystallization firstly from boiling acetonitrile (12 cc) and then from boiling acetonitrile (17 cc), 2-{3-[4-(4-chlorophenyl)piperidino]propyl}naphtho[1,8-cd]isothiazole 1,1-dioxide (1.4 g) is obtained, m.p. 111° C.

Workup

temperatureThe mixture is heated for 8 hours
customAfter purification by flash-chromatography on a silica column
customunder a current of argon at medium pressure (0.5-1.5 bar) with ethyl acetate as eluant, and recrystallization firstly

Sources & evidence

ORD record: ord-4dabef80f4c649d58555bbc7b84505b5
Source dataset: uspto-grants-1991_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05036075

Reaction notes

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