4-BROMO-3 5-DICHLOROPYRIDINE(CAS# 343781-45-3)

Isingeniso

I-4-Bromo-3,5-dichloropyridine iyinhlanganisela ye-organic ene-chemical formula C5H2BrCl2N. Okulandelayo yincazelo yemvelo yayo, ukusetshenziswa, ukulungiswa kanye nolwazi lokuphepha:

Imvelo:

I-4-Bromo-3,5-dichloropyridine iyikristalu ephuzi engenambala noma ephaphathekile enephunga elimnandi elikhethekile. Iphuzu layo lokuncibilika liphakathi kuka-80-82°C kanti indawo yalo yokubilisa iphakathi kuka-289-290°C. Ayincibiliki emanzini ezingeni lokushisa elijwayelekile, kodwa incibilika kuzincibilikisi zemvelo njenge-ethanol ne-chloroform.

Sebenzisa:

I-4-Bromo-3,5-dichloropyridine isetshenziswa kabanzi embonini yamakhemikhali. Iyingxenye ebalulekile yezinhlanganisela ze-pyridine futhi ingasetshenziswa ekuhlanganiseni ezinye izinhlanganisela eziphilayo nezidakamizwa. Inokuqina okuhle kwamakhemikhali kanye nokusebenza kabusha, futhi ingasetshenziswa njenge-catalyst, i-ligand, udayi kanye nezinto zokusetshenziswa kwezibulala-zinambuzane.

Indlela Yokulungiselela:

Indlela yokulungiselela ye-4-Bromo-3,5-dichloropyridine ngokuvamile ifinyelelwa ngokusabela esikhundleni se-pyridine. Indlela yokulungiselela evame ukusetshenziswa ihlanganisa ukusabela kwe-pyridine nge-bromine kanye ne-ferric chloride, futhi ukusabela kokubuyisela kwenziwa ngaphansi kwezimo ezifanele ukuthola umkhiqizo ohlosiwe. Inqubo yokulungiselela idinga ukulawula izinga lokushisa lokusabela, inani le-pH nesikhathi sokusabela kanye neminye imingcele ukuze kutholwe imikhiqizo yokuhlanzeka okuphezulu.

Ulwazi Lokuphepha:

I-4-Bromo-3,5-dichloropyridine iyinhlanganisela ezinzile futhi ephephile ngaphansi kwezimo ezijwayelekile, kodwa kusadingeka ukunaka ukusebenza okuphephile. Ingangena emzimbeni ngokuhogela, ukuthintana nesikhumba nokungenwa. Ukuhogela amagesi amaningi nothuli kungabangela ukucasuka, kubangele ukungakhululeki kokuphefumula namehlo. Ukuthinta isikhumba kungabangela ukubomvu, ukuluma kanye nokungezwani komzimba. Ukungena kwenhlanganisela kungase kubangele ukungakhululeki kwamathumbu kanye nemiphumela enobuthi. Ngakho-ke, izinto zokuzivikela ezifanele kufanele zigqokwe ngesikhathi sokusetshenziswa ukugwema ukuthintana ngqo nokuhogela. Uma kwenzeka izingozi, ukwelashwa okuphuthumayo kufanele kwenziwe ngesikhathi futhi kufanele kuboniswane nochwepheshe. Ngaphezu kwalokho, kufanele igcinwe endaweni eyomile, engenawo umoya, kude nomlilo kanye nama-oxidizing agents.