Hydrazine hydrate (1:1) → 3-[(2,2,3,3,4,4,4-Heptafluorobutoxy)methyl]aniline

180 g (0.54 mol) of 1-(2,2,3,3,4,4,4-heptafluorobutoxy)methyl-3-nitrobenzene (Compound No. 11) obtained in Example 2 was dissolved in 500 ml of ethanol, and the mixture was refluxed for 30 minuted after adding 7.9 g of FeCl3.6H2O and 12.5 g of activated carbon thereto. While the mixture was being stirred, 100 g (2.00 mol) of hydrazine hydrate was added dropwise thereto so as not to cause violent foaming. The mixture was refluxed for 2 hours after the completion of the dropping, thereby completing the reaction. After the reaction mixture was left to cool, the reaction mixture was filtered through a Celite layer and washed with ethanol. The filtrate was concentrated and dissolved in 500 ml of benzene. The solution was successively washed with water and saturated saline solution and was dried by anhydrous sodium sulfate.

1. custom11) obtained in Example 2
2. temperaturethe mixture was refluxed for 30 minuted
3. temperatureThe mixture was refluxed for 2 hours after the completion of the dropping
4. customthe reaction
5. waitAfter the reaction mixture was left
6. temperatureto cool
7. filtrationthe reaction mixture was filtered through a Celite layer
8. washwashed with ethanol
9. concentrationThe filtrate was concentrated
10. dissolutiondissolved in 500 ml of benzene
11. washThe solution was successively washed with water and saturated saline solution
12. dry with materialwas dried by anhydrous sodium sulfate

ORD record

ord-9ee8363717514038ab07fa4258060416

Source dataset

uspto-grants-1991_03

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05001275