Hydrazine → HCID 178478044, compound

HRID 230163Notes

Reaction equation

HRID 230163 reaction equation
Cl[C:2]1[C:7]([C:8]([C:10]2[S:11][CH:12]=[CH:13][CH:14]=2)=O)=[CH:6][N:5]=[C:4]([O:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=2[Cl:22])[N:3]=1.[NH2:23][NH2:24]>C(O)C.C1COCC1>[Cl:22][C:17]1[CH:18]=[CH:19][CH:20]=[CH:21][C:16]=1[O:15][C:4]1[N:3]=[C:2]2[NH:23][N:24]=[C:8]([C:10]3[S:11][CH:12]=[CH:13][CH:14]=3)[C:7]2=[CH:6][N:5]=1

Participants

5

Reactant 2

HCID 9321HydrazineHCID 59834304[4-Chloro-2-(2-chloro-phenoxy)-pyrimidin-5-yl]-thiophen-2-yl-methanone

Product 1

HCID 178478044HCID 178478044, compoundYield 47.6%

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

[4-Chloro-2-(2-chloro-phenoxy)-pyrimidin-5-yl]-thiophen-2-yl-methanone (82 mg, 0.23 mmol) was dissolved in a mixture of 10 mL ethanol and 0.5 mL THF, and 15 mg of anhydrous hydrazine was added. The reaction mixture was stirred at room temperature for 10 minutes and then was heated to 80° C. for 20 minutes. Solvent was removed under reduced pressure, and the residue was purified by preparative scale TLCusing 1.8% MeOH in methylene chloride to yield 36 mg of 6-(2-Chloro-phenoxy)-3-thiophen-2-yl-1H-pyrazolo[3,4-d]pyrimidine. Mass Spec. M+H=329. Mp=221.3-223.1° C.

Workup

  1. additionwas added
  2. temperaturewas heated to 80° C. for 20 minutes
  3. customSolvent was removed under reduced pressure
  4. customthe residue was purified by preparative scale

Sources & evidence

ORD record
ord-af1a3f2a887e40b09929dec8d56d5730
Source dataset
uspto-grants-2009_07
Patent number
US07566708B2

Reaction notes

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