3 5-Dibromo-2-methylpyridine (CAS# 38749-87-0)

Isingeniso

I-3,5-Dibromo-2-methylpyriridine iyinhlanganisela ye-organic ene-chemical formula ye-C6H5Br2N. Isakhiwo ukuthi izikhundla ezi-2 nezi-6 eringini ye-pyridine zithathelwa indawo ama-athomu e-methyl ne-bromine, ngokulandelana.

Imvelo:

I-3,5-Dibromo-2-methylpyriridine iyikristalu ephuzi ephuzi engenambala nephunga elimnandi. Iqinile ezingeni lokushisa legumbi futhi inokuncibilika okumaphakathi. Inephuzu lokuncibilika elingu-56-58°C kanye nephuzu elibilayo elingu-230-232°C.

Sebenzisa:

I-3,5-Dibromo-2-methylpyriridine isetshenziswa kabanzi ku-organic synthesis. Ingasetshenziswa njenge-reagent ekuhlanganiseni kwezinhlanganisela ezihlukahlukene ze-organic, njengezidakamizwa, izibulala-zinambuzane kanye nodayi. Ngaphezu kwalokho, ingasetshenziswa futhi njengento eyinkomba ekuhlaziyeni amakhemikhali.

Indlela Yokulungiselela:

Indlela yokulungiselela ye-3,5-Dibromo-2-methylpyriridine ivame ukuqhutshwa ukusabela kwe-alkylation kanye ne-bromination reaction ye-pyridine. Okokuqala, indawo ye-2 ku-pyridine i-methylated ne-agent ye-methylating ngaphansi kwezimo eziyisisekelo ukuze yenze i-2-picoline. Bese, i-2-methylpyridine isabela nge-bromine ukunikeza umkhiqizo wokugcina i-3,5-Dibromo-2-methylpyridine.

Ulwazi Lokuphepha:

I-3,5-Dibromo-2-methylpyridine iyacasula futhi igqwala futhi ithintana ngqo nesikhumba, amehlo kanye nolwelwesi lwamafinyila kufanele kugwenywe. Ngesikhathi sokusetshenziswa, kufanele kuthathwe izinyathelo zokuzivikela, njengokugqoka izibuko zokuzivikela namagilavu, nokuqinisekisa ukuthi ukuhlinzwa kwenziwa endaweni enomoya omuhle. Ngaphezu kwalokho, iphinde ibe yinto evuthayo futhi kufanele igcinwe kude namalangabi avulekile kanye nezindawo zokushisa eziphezulu. Uma uhogele umoya noma ungenwe ngephutha, kufanele ufune usizo lwezokwelapha kusenesikhathi.