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

Mawu Oyamba

Acid, 4-bromo-1, 5-dimethanol-ndi mankhwala omwe mankhwala ake ndi C7H8BrNO2.

Chilengedwe:

1. Maonekedwe: asidi, 4-bromo-1,5-dimethyl-white solid.

2. Malo osungunuka: Malo osungunuka a pawiri ali pakati pa 128-130 ° C.

3. Kusungunuka: Kusungunuka mu zosungunulira zina za organic, monga ethanol ndi dichloromethane, koma osasungunuka m'madzi.

Gwiritsani ntchito:

Acid, 4-bromo-1,5-dimethyl-ali ndi phindu linalake la ntchito mu kaphatikizidwe ka organic, ndipo amagwiritsidwa ntchito makamaka popanga chigoba cha mamolekyu achilengedwe ndi machitidwe owongolera. Itha kugwiritsidwa ntchito ngati wapakatikati pakupanga mankhwala ophera tizilombo, mankhwala ndi utoto.

Njira Yokonzekera:

asidi, 4-bromo-1,5-dimethyl-akhoza kupangidwa ndi masitepe awa:

1. Choyamba, methyl methacrylate ndi aniline amachitidwa pansi pa catalysis ya alkali kukonzekera 1,5-dimethyl-1H-pyrazole.

2. 1,5-dimethyl -1H-pyrazole imachitidwa ndi hydrogen bromide pamaso pa acetic acid kuti apange 4-bromo-1, 5-dimethyl -1H-pyrazole.

3. Pomaliza, 4-bromo-1, 5-dimethyl-1H-pyrazole imachitidwa ndi sodium hydroxide kapena sodium carbonate kuti apange asidi, 4-bromo-1,5-dimethy-.

Zambiri Zachitetezo:

Pankhani ya chitetezo cha asidi, 4-bromo-1,5-dimethyl-, mfundo zotsatirazi ziyenera kudziwidwa:

1. pawiri akhoza kukwiyitsa maso, khungu ndi kupuma dongosolo, chonde kupewa kukhudzana mwachindunji.

2. Mukamagwiritsa ntchito, pewani kutulutsa fumbi kapena nthunzi wa yankho.

3. Pogwira ntchito ndi kusungirako, mpweya wabwino ndi njira zodzitetezera ziyenera kuchitidwa, monga kuvala magalasi otetezera, magolovesi ndi zovala zoyenera zodzitetezera.

4. Mukakumana ndi mankhwalawa, tsitsani madzi ambiri pamalo okhudzidwawo ndipo funsani malangizo a dokotala.

Izi ndi zongotengera zokha. Chonde werengani ndikutsatira chikalata chachitetezo chamankhwala oyenera musanagwiritse ntchito.