5-Bromo-2-fluoro-4-methyl-pyridine（CAS# 864830-16-0)
| Waehere Morearea | R22 – He kino ki te horomia R37/38 – He whakapataritari ki te punaha manawa me te kiri. R41 – He kino kino ki nga kanohi |
| Whakaahuatanga Haumaru | S26 – Mena ka pa ki nga kanohi, horoi tonu ki te nui o te wai me te rapu tohutohu hauora. S39 – Mau whakamarumaru kanohi / kanohi. |
| Te akomanga morearea | TANGATA |
Kupu Whakataki
He pūhui waro me te tātai rāpoi C≡H∞BrFN, he ngota fluorine, he roopu methyl me te ngota bromine kua whakakapia ki te mowhiti pyridine.
Taiao:
he totoka, he paitini me te whakapouri. He wairewa i roto i nga whakarewa pararopi penei i te waihano me te dimethylformamide i te pāmahana rūma, ka taea te here hauwai ki etahi kaikawe here hauwai (hei tauira, waipiro).
Whakamahia:
He maha nga wa ka whakamahia hei rauemi timatanga, takawaenga ranei i roto i nga tauhohenga whakahiato waro. Ka taea te whakamahi i roto i te whakarite i nga rongoa, pesticides me etahi atu puhui waro. Ko te whānuitanga o ana tono ko te rangahau rongoa, te whakahiato matū me te pūtaiao rauemi.
Tikanga Whakaritenga:
Ko te tikanga whakarite mo te fluorination ka taea e te benzyl bromination me te fluorination. Tuatahi, ka tauhohehia he pūhui benzyl (4-methylpyridine) me te benzylidene bromide hei whakaputa i te pūhui bromobenzyl (2-bromo-4-methylpyridine). Ka tauhohehia tenei puhui ki te waikawa puowaiwai hei whakaputa i te hua kawa (phosphonium).
Mōhiohio Haumaru:
he paitini, me whai tikanga tiaki tika. A ape i te pa atu ki te kiri, ki nga kanohi, ki te ara manawa i te wa e mahi ana. Me whakamahia ki te waahi pai-hau, me mau mohiti whakamarumaru tika, karapu me te kanohi kanohi. Whakaorangia mai i te ahi me nga matū waiora, ka karo i te tauhohenga me etahi atu matū. Mena ka kitea, ka ngongohia ranei, rapu wawe i nga tohutohu hauora.
