Sodium Hydroxide → p-Aminobenzamidine

HRID 128407노트

반응식

HRID 128407 반응식
[OH-].[Na+].Cl.[NH2:4][C:5]1[CH:13]=[CH:12][C:8]([C:9]([NH2:11])=[NH:10])=[CH:7][CH:6]=1>O>[NH2:4][C:5]1[CH:13]=[CH:12][C:8]([C:9]([NH2:11])=[NH:10])=[CH:7][CH:6]=1

참가 물질

4

반응물 2

HCID 14798Sodium HydroxideHCID 122765Benzenecarboximidamide, 4-amino-, hydrochloride (1:1)

생성물 1

HCID 1725p-Aminobenzamidine

시약·촉매·용매 1

HCID 962Water용매

실험 절차

Addition of 50% sodium hydroxide (4.0 g., 0.05 mole) to a solution of 4-aminobenzamidine hydrochloride (0.5 mole) in 10 ml. of water affords 4-aminobenzamidine free base. Acetone (50 ml.) is added to the liberated free base and the mixture cooled to 5° C. 4-Nitrostyrylsulfonyl chloride is added to the mixture in a period of 5 min. while maintaining a temperature below 15° C. The mixture is stirred for 10 min., the reaction mixture concentrated under reduced pressure provides a residue which diluted with 100 ml. of water and neutralized with 3 N hydrochloric acid affords a pale yellow solid precipitate. The precipitate is collected, washed thoroughly with water and then triturated first with isopropanol and then with ether to yield 7.3 g. (84%) of N-(4-NITROSTYRYLSULFONYL)-4-AMINOBENZAMIDINE, m.p. 188°-189° C.

출처 및 근거

ORD 기록
ord-08cac3570d854f73b556696eea77141f
출처 데이터셋
uspto-grants-1981_03
특허 번호
US04259482

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