Reaktion #1860184

Reaktionsgleichung

1,2,3,4-tetrafluoro-5,8-dihydroxyanthraquinone

2-Amino-5-diethylaminopentane

→

1,4-bis(5-(diethylamino)pentan-2-ylamino)-2,3-difluoro-5,8-dihydroxyanthracene-9,10-dione

Lösungsmittel

CH2Cl2

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeAfter evaporation of the solvents
2. 2
   Sonstigethe residue was purified by silica gel chromatography
3. 3
   Sonstigeyielding 364 mgs of Dye 2 as dark blue product

Vorschrift

A mixture of 1,2,3,4-tetrafluoro-5,8-dihydroxyanthraquinone (0.47 g, 1.5 mmol) and 2-Amino-5-diethylaminopentane (2.3 mL) in CH2Cl2 (20 mL) was stirred at room temperature for 12 hours. After evaporation of the solvents, the residue was purified by silica gel chromatography using isocratic solvent system of CH2Cl2/MeOH/Et3N (100:10:1) yielding 364 mgs of Dye 2 as dark blue product. Abs (max, PBS pH 7.4)=667 nm; Em=700 nm. The structure of Dye 2 is given below:

Quelle