تفاعل #40739

معادلة التفاعل

sodium hydride

2-naphthalen-1-yl-1H-imidazole

iodoethane

→

title compound

1-ethyl-2-naphthalen-1-yl-1H-imidazole

المذيبات

DMF

DMF

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةcooled to 0° C.
2. 2
   workup.STIRRINGThe mixture is stirred at rt for 1 hr
3. 3
   درجة الحرارةheated to 50° C.
4. 4
   workup.STIRRINGstirred for an additional 8 hr
5. 5
   درجة الحرارةThe reaction mixture is cooled to rt
6. 6
   استخلاصThe mixture is extracted with EtOAc (100 ml×3)
7. 7
   غسيلThe combined organic layers are washed with water and brine
8. 8
   تجفيفdried over anhydrous sodium sulfate, and solvent
9. 9
   أخرىis evaporated at reduced pressure
10. 10
    أخرىThe crude product is purified by flash chromatography on silica gel

الإجراء التجريبي

To a suspension of sodium hydride (2.40 g, 60% mineral oil suspension, 60 mmol) in anhydrous DMF (30 ml) is added a solution of 2-naphthalen-1-yl-1H-imidazole (9.70 g, 50 mmol) in DMF (70 ml) at rt. The resulting mixture is stirred at 50° C. for 1 hr, and then cooled to 0° C., after which iodoethane (8.19 g, 52.5 mmol, 1.05 eq.) is added dropwise. The mixture is stirred at rt for 1 hr, and then heated to 50° C. and stirred for an additional 8 hr. The reaction mixture is cooled to rt, and poured into ice-water (500 ml). The mixture is extracted with EtOAc (100 ml×3). The combined organic layers are washed with water and brine, dried over anhydrous sodium sulfate, and solvent is evaporated at reduced pressure. The crude product is purified by flash chromatography on silica gel to give the title compound. LCMS 223 (M+1).

المصدر