Hydrochloric Acid → cis-2-[4-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]butyl]hexahydro-1H-isoindole-1,3-dione hydrochloride

HRID 609951Notes

Reaction equation

HRID 609951 reaction equation
[NH2:1][CH2:2][CH2:3][CH2:4][CH2:5][N:6]1[CH2:11][CH2:10][CH:9]([C:12]2[C:16]3[CH:17]=[CH:18][C:19]([F:21])=[CH:20][C:15]=3[O:14][N:13]=2)[CH2:8][CH2:7]1.[C@@H:22]12[C:31](=O)[O:30][C:28](=[O:29])[C@@H:23]1[CH2:24][CH2:25][CH2:26][CH2:27]2.[ClH:33]>N1C=CC=CC=1.C(O)C>[ClH:33].[F:21][C:19]1[CH:18]=[CH:17][C:16]2[C:12]([CH:9]3[CH2:10][CH2:11][N:6]([CH2:5][CH2:4][CH2:3][CH2:2][N:1]4[C:28](=[O:29])[C@H:23]5[C@H:22]([CH2:27][CH2:26][CH2:25][CH2:24]5)[C:31]4=[O:30])[CH2:7][CH2:8]3)=[N:13][O:14][C:15]=2[CH:20]=1

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 641660Hexahydrophthalic anhydride, cis-HCID 219600491-(4-Aminobutyl)-4-(6-fluoro-1,2-benzisoxazol-3-yl)piperidine

Product 1

HCID 67071030cis-2-[4-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]butyl]hexahydro-1H-isoindole-1,3-dione hydrochloride

Reagents, catalysts & solvents 2

HCID 702EthanolSolvent2×HCID 1049PyridineSolvent2×

Procedure

A mixture of 1-(4-aminobutyl)-4-(6-fluoro-1,2-benzisoxazol-3-yl)piperidine (4.7 g, 16.1 mmol) and cis-1,2-cyclohexanedicarboxylic anhydride (3.23 g, 21 mmol) in pyridine (45 ml) was heated at reflux for 8 hours. At the end of the reaction, pyridine was removed to dryness. The crude product was purified on a silica gel column. The material thus obtained weighed 3.18 g (45%) as a clear oil. This oil was dissolved in ethanol (15 ml), then was treated with HCl in ethanol (45 ml). Crystallization took place upon cooling. The crystals were collected, 3.2 g, m.p.=22914 231° C.

Workup

  1. temperaturewas heated
  2. temperatureat reflux for 8 hours
  3. customwas removed to dryness
  4. customThe crude product was purified on a silica gel column
  5. customThe material thus obtained
  6. customCrystallization
  7. temperatureupon cooling
  8. customThe crystals were collected
  9. custom=22914 231° C.

Sources & evidence

ORD record
ord-7c62d8567f1640d6bb650ffa373898bf
Source dataset
uspto-grants-1999_12
Patent number
US05998417

Reaction notes

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