تفاعل #1904044

معادلة التفاعل

4-bromoiodobenzene

2-phenylindole

potassium carbonate

o-dichlorobenzene

→

1-(4-bromophenyl)-2-phenylindole

المردود 50.1%

المذيبات

hexane ethyl acetate

Toluene

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةrefluxed
2. 2
   درجة الحرارةheated
3. 3
   workup.STIRRINGunder stirring at 60° C.
4. 4
   ترشيحinsoluble matter was filtered off
5. 5
   أخرىdried
6. 6
   workup.ADDITIONHexane was added to the residue
7. 7
   ترشيحwas filtered off
8. 8
   أخرىcondensed
9. 9
   أخرىrecrystallized with a mixed solvent of hexane/ethyl acetate

الإجراء التجريبي

50.0 g (177 mmole) of 4-bromoiodobenzene, 28.5 g (177 mmole) of 2-phenylindole, 30.5 g (221 mmole) of potassium carbonate, 18.7 g of copper powder, and 150 ml of o-dichlorobenzene were put in a 500 ml three-necked flask, and refluxed with stirring for 25 hours under nitrogen flow. Toluene was added to the reaction mixture heated under stirring at 60° C., and insoluble matter was filtered off. The filtrate was vacuum dried. Hexane was added to the residue and deposited crystal was filtered off. The filtrate was condensed, and refined by silica gel column chromatography (eluent:hexane/ethyl acetate: 50/1), recrystallized with a mixed solvent of hexane/ethyl acetate to give 25.7 g of a white crystal of 1-(4-bromophenyl)-2-phenylindole (yield: 50.1%).

المصدر