3-Bromo-5-nitrobenzene-1,2-diamine

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 준비 용품 및 원자재

원자재

준비 용품

3-Bromo-5-nitrobenzene-1,2-diamine 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