2-Bromo-4-methyl-5-nitropyridine（CAS# 23056-47-5)
| Waehere Morearea | R20/21/22 – He kino ma te horomia, ka pa ki te kiri me te horomia. R36/37/38 – He whakapataritari ki nga kanohi, te punaha manawa me te kiri. |
| Whakaahuatanga Haumaru | S26 – Mena ka pa ki nga kanohi, horoi tonu ki te nui o te wai me te rapu tohutohu hauora. S37/39 – Kia mau nga karapu tika me te whakamarumaru kanohi/kanohi |
| Te akomanga morearea | TANGATA |
Kupu Whakataki
Ko te 2-Bromo-4-methyl-5-nitropyridine he pūhui waro. E whai ake nei he kupu whakataki mo tona ahuatanga, te whakamahinga, te tikanga whakarite me nga korero haumaru:
Kounga:
Ko te 2-Bromo-4-methyl-5-nitropyridine he matū totoka me nga tioata kowhai. I te pāmahana o te rūma, he uaua te whakarewa ki te wai, engari ka taea te whakarewa i roto i nga whakarewa pararopi penei i te waihano me te dimethylformamide.
Whakamahia:
Ka whakamahia tenei pūhui hei takawaenga i roto i te whakahiato waro. Ka taea te whakamahi ki te whakarite i etahi atu pūhui heterocyclic kei roto hauota, penei i te pyrroles me te indole.
Tikanga:
Ka taea te whakarite i te 2-Bromo-4-methyl-5-nitropyridine e te tauhohenga whakakapi o te aniline. I raro i nga tikanga e tika ana, ka tauhohehia te aniline me te waikawa bromoacetic hei whakaputa i te 2-bromoaniline. Na, na roto i te alkylation i raro i nga tikanga alkaline, 2-bromoaniline te alkylated ki te whiwhi 2-bromo-4-methylaniline. Ko te hua o te 2-bromo-4-methylaniline he nitrified e te nitrification ki te whiwhi 2-bromo-4-methyl-5-nitropyridine.
Mōhiohio Haumaru:
Ko te 2-Bromo-4-methyl-5-nitropyridine he puhui pararopi, me penapena me te whakamahi tika. He matū ngiha, me noho matara atu i te mura ahi me te wera nui. I te wa e mahi ana, me karo te pa atu ki te kiri, ki nga kanohi, ki te taha manawa, me mahi i raro i nga tikanga whai hau. Me mau nga karapu whakamarumaru, nga karaehe me nga kanohi kanohi ina whakamahia. Mena ka pa mai, ka horoi tonu ki te nui o te wai me te rapu i nga mahi hauora.
