3-Bromo-5-nitrobenzene-1,2-diamine
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3-Bromo-5-nitrobenzene-1,2-diamine 속성
- 녹는점
- 203-205 °C
- 끓는 점
- 426.5±40.0 °C(Predicted)
- 밀도
- 1.901±0.06 g/cm3(Predicted)
- 산도 계수 (pKa)
- 0.81±0.10(Predicted)
안전
3-Bromo-5-nitrobenzene-1,2-diamine C화학적 특성, 용도, 생산
Synthesis
Sodium sulfide nonahydrate (96 g, 400 mmol) and sulfur (12.8 g, 400 mmol) in a mixture of water and ethanol was heated at reflux under nitrogen for 1 h. The solution was added to a stirred suspension of 2-bromo-4,6-dinitrobenzenamine (104.8 g, 400 mmol) and ammonium chloride (20.8 g, 400 mmol) in a solution of 400 mL of water and 700 mL of ethanol. The mixture was stirred at 65° C for 30 min. Then 400 mL of 2N NaOH solution was added dropwise during 30 min and the mixture was then stirred for 15 minutes at 65° C. After cooling, the mixture was poured onto a mixture of 2N HCl (400 mL), 1 kg ice and 1 L of water, stirred for 15 min to complete the reaction and extracted with ethyl acetate (1 L*3). The combined organic layers were dried over sodium sulphate and evaporated to give the crude product (3-Bromo-5-nitrobenzene-1,2-diamine) (90 g, 97%) as a rust-colored solid, which was used for the next step without further purification.![3-Bromo-5-nitrobenzene-1,2-diamine 3-Bromo-5-nitrobenzene-1,2-diamine](/NewsImg/2023-10-26/6383391590079734657211778.jpg)
3-Bromo-5-nitrobenzene-1,2-diamine 준비 용품 및 원자재
원자재
준비 용품
3-Bromo-5-nitrobenzene-1,2-diamine 공급 업체
글로벌( 14)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
Jinan Carbotang Biotech Co.,Ltd. | +8615866703830 |
figo.gao@foxmail.com | China | 7621 | 58 |
Shanghai Gubang New Materail Technology Co. LTD | 21-51317962 +8618721305404 |
16728589@qq.com | CHINA | 272 | 58 |
Santai Labs, Inc. | 519-85601385 |
marketing@santailabs.com | China | 891 | 62 |
LinkChem Co.,Ltd. | 021-021-58950110 13124863828 |
sales@linkchem.cn | China | 2881 | 58 |
Jinan Kabotang Biological Technology Co.,Ltd. | 0531-61320525 15866703830 |
495745175@qq.com | China | 7332 | 58 |
Nanjing Asfam Pharmaceutical Technology Co., Ltd. | 025-58867862 18751812725 |
sales@ace-pharm.com | China | 1994 | 58 |
Shanghai Gugang New Materials Technology Co. Ltd. | 021-51317962 |
296935822@qq.com | China | 974 | 58 |
Birdo (Shanghai) Medical Technology Co., Ltd. | 021-021-021-58099077-8102-8041-8041 18601625411 |
sales@birdotech.com | China | 9301 | 58 |
Taizhou Nanfeng Pharmaceutical Research Institute | 18616377689 |
nanfengdrug@163.com | China | 20566 | 58 |
Shanghai Haohong Pharmaceutical Co., Ltd. | 4008210725 4008210725 |
malulu@leyan.com | China | 54986 | 58 |