5-Bromo-2-methyl-3-nitropyridine（CAS# 911434-05-4)

Kupu Whakataki

Ko te 5-Bromo-2-methyl-3-nitropyridine he pūhui waro.

Nga Taonga: Ko te 5-Bromo-2-methyl-3-nitropyridine he kowhai ki te karaihe karaka me te reka o te nitro motuhake. He pūmau i te pāmahana rūma, engari ka puta te pirau i te wera, i te pa atu ranei ki nga waikawa kaha.

Ka taea hoki te tono ki te tātari matū, tohu koiora, me te whakahiato waro.

Te tikanga whakarite: Ko te tikanga whakarite 5-bromo-2-methyl-3-nitropyridine ka taea te nitrification. Ko te tikanga noa ko te tauhohe i te 2-methylpyridine me te waikawa nitric concentrated ki te whakaputa i te 2-methyl-3-nitropyridine, katahi ka whakamahi i te bromine ki te whai tauhohenga bromination i te aroaro o te waikawa pungatara kia whiwhi ai i te hua whakamutunga.

Nga korero haumaru: Ko te 5-bromo-2-methyl-3-nitropyridine he ahua pumau i raro i nga tikanga whakamahi whanui, engari me aro tonu ki te mahi haumaru. He matū ngiha, me karohia te pa ki te mura o te ahi, te wera nui ranei. Ko nga taputapu tiaki whaiaro e tika ana, penei i nga karapu taiwhanga me nga karaehe haumaru, me mau i te wa e mahi ana, me te karo i te pa ki te kiri me nga kanohi. Mena ka pa mai, ka horoi tonu me te nui o te wai, ka rapu wawe i te rongoa. Me tika te penapena me te tuku para hei tiaki i te taiao.