Phenethylamine → HCID 9864086, compound

HRID 1635492Notes

Reaction equation

HRID 1635492 reaction equation
Cl[C:2]1[CH:7]=[C:6]([C:8]2[N:12]([C:13]3[CH:18]=[CH:17][CH:16]=[C:15]([CH3:19])[CH:14]=3)[N:11]=[C:10]([CH3:20])[CH:9]=2)[CH:5]=[CH:4][N:3]=1.[CH2:21]([NH2:29])[CH2:22][C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1>>[C:23]1([CH2:22][CH2:21][NH:29][C:2]2[CH:7]=[C:6]([C:8]3[N:12]([C:13]4[CH:18]=[CH:17][CH:16]=[C:15]([CH3:19])[CH:14]=4)[N:11]=[C:10]([CH3:20])[CH:9]=3)[CH:5]=[CH:4][N:3]=2)[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1

Participants

3

Reactant 2

HCID 1001PhenethylamineHCID 114829832-chloro-4-[1-(3-methylphenyl)-3-methyl-1H-pyrazol-5-yl]pyridine

Product 1

HCID 9864086HCID 9864086, compoundYield 74%

Conditions

Temperature
200 °C

Procedure

A mixture of 2-chloro-4-[1-(3-methylphenyl)-3-methyl-1H-pyrazol-5-yl]pyridine (Example 45; 0.5 g, 0.0018 mol) and phenethylamine (15 mL) was heated at 200° C. for 24 hours. The excess amine was removed under vacuum and the residue was partitioned between ethyl acetate and water. The organic layer was washed with brine, dried over magnesium sulfate and filtered. The filtrate was concentrated and the crude was purified by chromatography on silica gel (ethyl acetate/hexane, 1:1) to give 0.48 g (74% yield) of product as a yellow oil, which solidified upon standing: mp: 86-87° C. Anal. Calc'd. for C24H24N4: C, 78.23; H, 6.56; N, 15.20. Found: C, 78.07; H, 6.82; N, 14.71.

Workup

  1. customThe excess amine was removed under vacuum
  2. customthe residue was partitioned between ethyl acetate and water
  3. washThe organic layer was washed with brine
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationThe filtrate was concentrated
  7. customthe crude was purified by chromatography on silica gel (ethyl acetate/hexane, 1:1)

Sources & evidence

ORD record
ord-1f6a8b56bb5c41439700bfd9a2bd4f59
Source dataset
uspto-grants-2003_01
Patent number
US06509361B1

Reaction notes

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