6-Bromo-7-chloro-3H-imidazo[4 5-b]pyridine(CAS# 83472-62-2)

Intshayelelo

I-3-Methyl-2,4-dichlorobenzoic acid i-organic compound. Oku kulandelayo sintshayelelo kubume bayo, ukusetyenziswa, indlela yokulungiselela kunye nolwazi lokhuseleko:

Umgangatho:

-Imbonakalo: Ikristale engenambala eqinileyo

-Ukunyibilika: ukunyibilika kwizinyibilikisi eziphilayo ezifana ne-ethanol, i-ether kunye ne-methylene chloride, enganyibilikiyo emanzini

Sebenzisa:

- Amayeza okubulala izitshabalalisi: 3-methyl-2,4-dichlorobenzoic acid sisichiza esibanzi esinokusetyenziswa ukulawula ukukhula kokhula olwahlukeneyo, njengengca ejikeleze izityalo ezifana nekale, iimbotyi, nombona.

Indlela:

I-3-Methyl-2,4-dichlorobenzoic acid ingalungiswa nge-chlorination ye-p-methylanise ether (3-methylanisole). Indlela ethile yokulungiselela inokubandakanya la manyathelo alandelayo:

Chitha i-3-methylanisole kwi-anhydrous hydrochloric acid.

I-sodium chlorite (NaClO) okanye i-potassium chlorite (KClO) yongezwa njengemithombo yeklorini.

Umxube wokusabela ushukunyiswa kumaqondo obushushu aphantsi, ngokuqhelekileyo phakathi kwe-0-5 °C.

Emva kokuba impendulo igqityiwe, umxube uyahluzwa okanye ukhutshwe ukuze ufumane imveliso ye-3-methyl-2,4-dichlorobenzoic acid.

Ulwazi ngoKhuseleko:

- I-3-Methyl-2,4-dichlorobenzoic acid inokubangela ingozi kwindalo, kwaye ingqalelo kufuneka ihlawulwe ekulawuleni ukusetyenziswa kunye nokulahlwa kwenkunkuma.

- Ukudibana ngqo neziyobisi kunokucaphukisa ulusu, amehlo, kunye nenkqubo yokuphefumla, kwaye ukudibana ngqo kufuneka kuphetshwe.

-Nxiba izixhobo ezifanelekileyo zokukhusela ezifana neeglavu, iiglasi, kunye nemaski xa usetyenziswa.

- Ukunyamekela kufuneka kuthathwe ukuthintela ukuxuba kunye nezinye iikhemikhali ngexesha lokugcinwa kunye nokuphatha, kwaye ugweme ukutshisa kunye nokushisa okuphezulu.

- Nceda ufunde kwaye ulandele amaxwebhu okhuseleko afanelekileyo kunye nezikhokelo zokusebenza phambi kokusetyenziswa. …