H-Pyrazole-3-carboxylic acid 4-bromo-1 5-dimethyl-(CAS# 5775-91-7)

Ọrọ Iṣaaju

Acid, 4-bromo-1, 5-dimethanol-jẹ apopọ ti agbekalẹ kemikali jẹ C7H8BrNO2.

Iseda:

1. Irisi: acid, 4-bromo-1,5-dimethyl-funfun ti o lagbara.

2. Idoti yo: Aaye yo ti agbo-ara naa wa laarin 128-130 ° C.

3. Solubility: O ti wa ni tiotuka ni diẹ ninu awọn Organic olomi, gẹgẹ bi awọn ethanol ati dichloromethane, sugbon insoluble ninu omi.

Lo:

Acid, 4-bromo-1,5-dimethyl-ni iye ohun elo kan ninu iṣelọpọ Organic, ati pe o jẹ lilo ni pataki lati kọ egungun ti awọn ohun elo Organic ati awọn aati itọsọna. O le ṣee lo bi agbedemeji fun iṣelọpọ ti awọn ipakokoropaeku, awọn oogun ati awọn awọ.

Ọna Igbaradi:

acid, 4-bromo-1,5-dimethyl-le jẹ iṣelọpọ nipasẹ awọn igbesẹ wọnyi-:

1. Ni akọkọ, methyl methacrylate ati aniline ti wa ni atunṣe labẹ catalysis ti alkali lati ṣeto 1,5-dimethyl-1H-pyrazole.

2. 1,5-dimethyl -1H-pyrazole ti ṣe atunṣe pẹlu hydrogen bromide ni iwaju acetic acid lati ṣe ina 4-bromo-1, 5-dimethyl -1H-pyrazole.

3. Nikẹhin, 4-bromo-1, 5-dimethyl-1H-pyrazole ti ṣe atunṣe pẹlu sodium hydroxide tabi sodium carbonate lati ṣe ipilẹṣẹ acid, 4-bromo-1,5-dimethy-.

Alaye Abo:

Nipa aabo ti acid, 4-bromo-1,5-dimethyl-, awọn ọrọ wọnyi nilo lati ṣe akiyesi:

1. agbo le jẹ irritating si awọn oju, awọ ara ati eto atẹgun, jọwọ yago fun olubasọrọ taara.

2. Nigba lilo, yago fun simi eruku tabi oru ti ojutu.

3. Lakoko iṣẹ ati ibi ipamọ, fentilesonu ti o dara ati awọn ọna aabo ti ara ẹni yẹ ki o mu, gẹgẹbi wọ awọn gilaasi aabo, awọn ibọwọ ati awọn aṣọ aabo ti o yẹ.

4. Ti o ba wa si olubasọrọ pẹlu agbo-ara yii, lẹsẹkẹsẹ fọ agbegbe ti o kan pẹlu ọpọlọpọ omi ki o si kan si imọran dokita rẹ.

Alaye yii jẹ fun itọkasi nikan. Jọwọ ka ati tẹle iwe data ailewu ti kemikali ti o yẹ ṣaaju lilo.