2,7-Dibromo-9,9-dimethylfluorene synthesis
- Product Name:2,7-Dibromo-9,9-dimethylfluorene
- CAS Number:28320-32-3
- Molecular formula:C15H12Br2
- Molecular Weight:352.06
16433-88-8
374 suppliers
$6.00/5g
28320-32-3
235 suppliers
$6.00/1g
Yield:28320-32-3 99%
Reaction Conditions:
with tetrabutylammomium bromide;sodium hydroxide in dimethyl sulfoxide at 20; for 5 h;
Steps:
1.2
Step2:Room temperature,2,7-dibromofluorene (9.72 g, 30 mmol) was added to the reactor.Tetra-n-butylammonium bromide (0.08g, 0.25mmol), methyl iodide (12.77g, 90mmol), 50% NaOH solution 10mL, DMSO 120mL,Ultrasound reaction for 5h,Then add 500mL water to stop the reaction, stirring, suction filtration, water washing,Drying gave intermediate 11-2 (10.46 g, 99%).
References:
Changchun Hai Purunsi Technology Co., Ltd.;Dong Xiuqin;Cai Hui CN108774175, 2018, A Location in patent:Paragraph 0071; 0072; 0074
16433-88-8
374 suppliers
$6.00/5g
74-88-4
357 suppliers
$15.00/10g
28320-32-3
235 suppliers
$6.00/1g
4569-45-3
220 suppliers
$7.00/5g
28320-32-3
235 suppliers
$6.00/1g
74-88-4
357 suppliers
$15.00/10g
28320-32-3
235 suppliers
$6.00/1g