![](/CAS/GIF/3652-90-2.gif)
2-BROMOCARBAZOLE synthesis
- Product Name:2-BROMOCARBAZOLE
- CAS Number:3652-90-2
- Molecular formula:C12H8BrN
- Molecular Weight:246.1
![4-Bromo-2'-nitrobiphenyl](/CAS/20150408/GIF/35450-34-1.gif)
35450-34-1
36 suppliers
$215.00/1g
![2-BROMOCARBAZOLE](/CAS/GIF/3652-90-2.gif)
3652-90-2
315 suppliers
$6.00/250mg
Yield:3652-90-2 75%
Reaction Conditions:
with triethyl phosphite in 1,2-dichloro-benzene at 80 - 150;Inert atmosphere;
Steps:
5 Preparation of 2-bromocarbazole
Under nitrogen protection, 200 mol of triethyl phosphite and 5 L of 1,2-dichlorobenzene were added to the reactor, and the temperature was raised to 150 ° C. and microcirculated.At about 80 ° C, 20 mol of 4'-bromo-2-nitrobiphenyl was dissolved in 18 L of 1,2-dichlorobenzene.Then, a solution of 4'-bromo-2-nitrobiphenyl in 1,2-dichlorobenzene was slowly added dropwise to a mixed system of triethyl phosphite and 1,2-dichlorobenzene under reflux.After the addition was completed, keep the reflux for 4 to 5 hours, detected to 4'-bromo-2-nitrobiphenyl reaction is completed.The ethyl acetate was recrystallized to give 2-bromocarbazole in a yield of 75%.
References:
Zhangjiagang Jiangsu University Of Science And Technology Industrial Technology Institute;Zhangjiagang Mi Xisi Optoelectric Materials Co., Ltd.;Cai Xingwei;Shao Yanliang;Zhao Yuyuan;Chen Fengshou;Lu Shengyu;Huang Cuiping CN105061296, 2018, B Location in patent:Paragraph 0033; 0034
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![2-BROMOCARBAZOLE](/CAS/GIF/3652-90-2.gif)
3652-90-2
315 suppliers
$6.00/250mg
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5467-74-3
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$8.00/1g
![2-BROMOCARBAZOLE](/CAS/GIF/3652-90-2.gif)
3652-90-2
315 suppliers
$6.00/250mg
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870703-52-9
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$42.70/1g
![2-BROMOCARBAZOLE](/CAS/GIF/3652-90-2.gif)
3652-90-2
315 suppliers
$6.00/250mg
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![2-BROMOCARBAZOLE](/CAS/GIF/3652-90-2.gif)
3652-90-2
315 suppliers
$6.00/250mg