I-N-Bromosuccinimide/NBS/CAS: 128-08-5

Ukusetshenziswa

I-N-Bromosuccinimide, evame ukufushaniswa ngokuthi i-NBS, iyisithako esicwebezelayo esimhlophe kuya komhlophe ngombala. Incibilika ku-acetone, i-tetrahydrofuran, i-N, i-N-dimethylformamide, i-dimethyl sulfoxide, kanye ne-acetonitrile, incibilika kancane emanzini kanye ne-acetic acid, futhi ayincibiliki ku-ether, i-hexane, kanye ne-carbon tetrachloride. I-NBS ivame ukusetshenziswa ekusabeleni kwe-bromination yamahhala kwamaqembu e-allyl kanye ne-benzyl; ukusabela kwe-bromination kwe-electrophilic kwama-ketone, ama-compounds aromatic, noma ama-compounds e-heterocyclic; ukusabela kwe-hydroxylation, etherification, kanye ne-lactonization kwama-olefins. I-NBS iyazwela umswakama futhi kufanele igcinwe esiqandisini. Ngesikhathi senqubo yokusebenzisa, ukuhogela noma ukuthintana nesikhumba kufanele kugwenywe, futhi ngokuvamile isetshenziswa endaweni yokushisa enomoya omuhle.

Isetshenziswa njenge-reagent yokuhlonza utshwala obuyinhloko, obuphakathi, nobesithathu. Ingasetshenziswa ukuhlanganisa izidakamizwa ze-bromoacetonitrile. Embonini yezibulala-zinambuzane, isetshenziselwa ukuhlanganisa i-thiabendazole futhi ingasetshenziswa njengesivikelo sezithelo, isibulala-magciwane, kanye nesikhutha, njll. Iyinto eluhlaza yokwenziwa kwezinto eziphilayo, esetshenziselwa ukulawula ukusabela kwe-bromination enamandla aphansi, futhi isetshenziswa nasekukhiqizweni kwezithasiselo zerabha kanye nemithi. Ingasetshenziswa ukuhlanganisa i-bromoacetonitrile yezokwelapha. Embonini yezibulala-zinambuzane, isetshenziselwa ukuhlanganisa i-thiabendazole futhi ingasetshenziswa njengesivikelo sezithelo, isibulala-magciwane, kanye nesikhutha. Isetshenziswa njenge-reagent yokuhlonza utshwala obuyinhloko, obuphakathi, nobesithathu kanye nesithasiselo semikhiqizo yerabha, futhi isetshenziswa nasekuhlanganisweni kwezinto eziphilayo. Iyinto ebalulekile yokuhlanganisa i-brominating ekuhlanganisweni kwezinto eziphilayo. Embonini yezemithi, ivame ukusetshenziswa njenge-ejenti yokuhlanganisa i-brominating ekuhlanganisweni kwama-antibiotic, njengokuhlanganiswa kwe-cefaloram. Ukuhlanganiswa kwezinto eziphilayo. Ukuhlanganiswa kwe-bromination kwama-olefin. Ukufakwa kwe-ethanol ku-aldehydes nama-ketone. Ukuxutshwa kwama-aldehyde abe yi-bromo - acid. I-brominating agent esebenza kahle kakhulu. Isetshenziswa ekusabeleni kwe-tryptophan nge-oxidation, kodwa izinga lokuxutshwa kwama-tyrosine, i-histidine, kanye nama-methionine residues lingase libe liphansi kakhulu. Ingasetshenziswa futhi ekuguqulweni kwamaqembu e-ribosomal thiol. I-brominating agent yendawo yonke. Uma kukhona i-AIBN, ama-silyl ether angaxutshwa abe yi-aldehydes. I-reagent yendawo yonke ye-brominating; isetshenziselwa ukuxutshwa kwe-tryptophan, yize kungase kube nama-tyrosine, i-histidine, kanye nama-methionine oxidation residues ngezinga elincane; isetshenziselwa ukuguqulwa kwamaqembu e-ribosomal thiol; uma kukhona i-AIBN, ama-silyl ether axutshwa abe yi-aldehydes.

Ukupakisha Nokuthumela

25KG/Isigubhu noma ngokwezidingo zamakhasimende.
Kungokwempahla evamile futhi kungathunyelwa ngolwandle nangomoya

Gcina futhi ugcine

Isikhathi sokuphila: Izinyanga ezingama-24 kusukela ngosuku lokwenziwa kwento epakishweni lokuqala elingavulwanga, igcinwe endaweni epholile neyomile kude nokukhanya kwelanga okuqondile, amanzi.
Indawo yokugcina izinto enomoya, Ukomisa okuphansi kwezinga lokushisa, Ihlukaniswe nama-oxidants, ama-acid.

Indawo yokugcina impahla kufanele ibe nomoya, igcinwe emazingeni okushisa aphansi futhi yomile. Yigcine ngokwehlukana ne-aniline, i-dialkyl sulfide, i-hydrazine hydrate, ama-peroxide kanye ne-propionitrile.