5-Bromo-2-fluoro-4-methyl-pyridine (CAS# 864830-16-0)
| Koodu ihe egwu | R22 - na-emerụ ma ọ bụrụ na iloro ya R37 / 38 - na-akpasu iwe na usoro iku ume na akpụkpọ ahụ. R41 - Ihe ize ndụ nke mmebi anya dị njọ |
| Nkọwapụta nchekwa | S26 - N'ihe banyere kọntaktị na anya, kpochaa ozugbo na ọtụtụ mmiri ma chọọ ndụmọdụ ahụike. S39 - Yiri anya / nchedo ihu. |
| Klas Hazard | Iwe |
Okwu mmalite
Ọ bụ ngwakọta organic nwere usoro ihe omimi C≡H∞BrFN, nke nwere atom fluorine, otu methyl na atom bromine dochie anya na mgbanaka pyridine.
Ọdịdị:
bụ ihe siri ike, na-egbu egbu na mgbakasị ahụ. Ọ bụ soluble na organic mgbaze dị ka ethanol na dimethylformamide n'ime ụlọ okpomọkụ, na ike hydrogen bonds na ụfọdụ hydrogen na-anabata njikọ (dịka, alcohols).
Jiri:
A na-ejikarị ya dị ka ihe mmalite ma ọ bụ etiti na mmeghachi omume njikọ organic. Enwere ike iji ya na nkwadebe nke ọgwụ, pesticides na ogige ndị ọzọ nke organic. Ngwa ya dị iche iche gụnyere nyocha ọgwụ, njikọ kemịkalụ na sayensị ihe.
Ụzọ nkwadebe:
Enwere ike nweta usoro nkwadebe nke fluorination site na benzyl bromination na fluorination. Nke mbụ, a na-emeghachi omume benzyl (4-methylpyridine) na benzylidene bromide iji mepụta bromobenzyl (2-bromo-4-methylpyridine). A na-eji hydrofluoric acid meghachi ihe ngwakọta a iji mepụta ngwaahịa fluorinated kwekọrọ (phosphonium).
Ozi nchekwa:
na-egbu egbu, kwesịrị iwere usoro nchebe kwesịrị ekwesị. Zere kọntaktị na akpụkpọ ahụ, anya na akụkụ iku ume mgbe ị na-arụ ọrụ. Ekwesịrị iji ya mee ihe n'ebe ikuku na-ekpo ọkụ nke ọma, na-eyikwa enyo nchebe kwesịrị ekwesị, uwe aka na ihe mkpuchi. Chekwaa n'ebe ọkụ na ihe ndị na-eme ihe na-ekpo ọkụ, ma zere mmeghachi omume na kemịkalụ ndị ọzọ. Ọ bụrụ na ekpughere ya ma ọ bụ ikuru ume, chọọ ndụmọdụ ahụike ozugbo.
