H-Pyrazole-3-karubasi ya acide 4-bromo-1 5-dimethyl- （CAS # 5775-91-7)

Intangiriro

Acide, 4-bromo-1, 5-dimethanol-ni urugimbu rufite imiti ya C7H8BrNO2.

Kamere:

1. Kugaragara: aside, 4-bromo-1,5-dimethyl-yera ikomeye.

2. Ingingo yo gushonga: Ingingo yo gushonga yikigo iri hagati ya 128-130 ° C.

3. Gukemura: Irashobora gushonga mumashanyarazi amwe n'amwe, nka Ethanol na dichloromethane, ariko ntigashonga mumazi.

Koresha:

Acide, 4-bromo-1,5-dimethyl-ifite agaciro gakoreshwa muri synthesis organique, kandi ikoreshwa cyane mukubaka skeleti ya molekile kama no kuyobora reaction. Irashobora gukoreshwa nkigihe cyo guhuza imiti yica udukoko, imiti n amarangi.

Uburyo bwo Gutegura:

aside, 4-bromo-1,5-dimethyl-irashobora guhuzwa nintambwe zikurikira-:

1. Ubwa mbere, methyl methacrylate na aniline bifatwa munsi ya catalizike ya alkali kugirango bategure 1,5-dimethyl-1H-pyrazole.

2. 1,5-dimethyl -1H-pyrazole isubizwa hamwe na hydrogen bromide imbere ya acide acike kugirango itange 4-bromo-1, 5-dimethyl -1H-pyrazole.

3. Hanyuma, 4-bromo-1, 5-dimethyl-1H-pyrazole isubizwa hamwe na sodium hydroxide cyangwa sodium karubone kugirango itange aside, 4-bromo-1,5-dimethy-.

Amakuru yumutekano:

Ku bijyanye n'umutekano wa aside, 4-bromo-1,5-dimethyl-, ibintu bikurikira bigomba kwitonderwa:

1. Uruvange rushobora kurakaza amaso, uruhu nubuhumekero, nyamuneka wirinde guhura.

2. Mugihe ukoresha, irinde guhumeka umukungugu cyangwa imyuka yumuti.

3. Mugihe cyo gukora no kubika, hagomba gufatwa ingamba nziza zo guhumeka hamwe no kurinda umuntu, nko kwambara ibirahure birinda, gants hamwe n imyenda ikingira.

4. Niba uhuye nuru ruganda, hita usukamo amazi yibasiwe namazi menshi hanyuma ubaze inama za muganga.

Aya makuru ni ayerekanwa gusa. Nyamuneka soma kandi ukurikize urupapuro rwumutekano rwimiti ijyanye mbere yo gukoresha.