4-Benzyloxyphenylhydrazine

4-Benzyloxyphenylhydrazine C화학적 특성, 용도, 생산

Manufacturing Process

Preparation of 4-benzyloxyphenylhydrazine: 200 grams 4-benzyloxyaniline hydrochloride was suspended in a mixture of 264 ml concentrated hydrochloric acid, 528 ml water and 732 grams crushed ice. A solution of 62.4 grams sodium nitrite in 136 ml water was added below the surface of the stirred suspension at -10-(+/-)2°C during 10 minutes. After stirring for 1 hour at 0°C, the suspension was treated with acid-washed charcoal and filtered.
The filtrate was cooled and maintained at -8°C while a solution of 500 grams of stannous chloride in 760 ml concentrated hydrochloric acid was added with stirring. The mixture was stirred for 2 hours at -8°C and the 4- benzyloxyphenylhydrazine hydrochloride which separated was filtered off and washed with water. The product was crystallized by adding 800 ml hot water to a 3 liter solution in ethanol and had a MP of 185° to 189°C (yield 168.5 grams, 79%).

4-Benzyloxyphenylhydrazine 준비 용품 및 원자재

원자재

준비 용품

4-Benzyloxyphenylhydrazine 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63711	58
Changzhou AniKare Pharmatech Co., Ltd.	+86-0519-8359-8696 +8618018249389	sales@anikare.com	China	8382	58
WUHAN SUN-SHINE BIO-TECHNOLOGY Co., Ltd.	17702719238 17702719238	sales@sun-shinechem.com	China	905	64
Chemsky（shanghai）International Co.,Ltd.	021-50135380	shchemsky@sina.com	China	32344	50
SynAsst Chemical.	021-60343070		China	12742	55
Shanghai Chainpharm Bio-medical Technology Co., Ltd.	021-61727342 13611721451	sales@chainpharm.com	China	932	58
Yantai ShengKailun Chemical Technology Co., Ltd.	13356901049	3119594100@qq.com	China	7778	55
Wuhan Sun-shine Bio-technology Corporation Limited	+86-027-6552-2453	sales@sun-shinechem.com	China	727	58
Aikon International Limited	025-66113011 18112977050	sales01@aikonchem.com	China	16028	58
Changzhou Bojia Biomedical Technology Co., Ltd.	2122619822	czbjpharma@126.com	China	18488	58

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