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

Ukusetyenziswa

I-N-Bromosuccinimide, edla ngokufinyezwa njenge-NBS, yinto ecocekileyo yekristale enombala omhlophe ukuya komhlophe. Inyibilika kwi-acetone, i-tetrahydrofuran, i-N, i-N-dimethylformamide, i-dimethyl sulfoxide, kunye ne-acetonitrile, inyibilika kancinci emanzini nakwi-acetic acid, kwaye ayinyibiliki kwi-ether, i-hexane, kunye ne-carbon tetrachloride. I-NBS idla ngokusetyenziswa kwi-free radical bromination reactions yamaqela e-allyl kunye ne-benzyl; i-electrophilic bromination reactions yee-ketones, ii-aromatic compounds, okanye ii-heterocyclic compounds; i-hydroxylation, i-etherification, kunye ne-lactonization reactions ze-olefins. I-NBS inovelwano kumswakama kwaye kufuneka igcinwe efrijini. Ngexesha lenkqubo yokusebenzisa, kufuneka kuphetshwe ukuphefumla okanye ukudibana nolusu, kwaye ngokubanzi isebenza kwi-fume hood enomoya osebenzayo.

Isetyenziswa njenge-reagent yokuchonga i-alcohols eziphambili, zesibini, nezesithathu. Ingasetyenziselwa ukuvelisa amayeza e-bromoacetonitrile. Kwishishini lee-pesticide, isetyenziselwa ukuvelisa i-thiabendazole kwaye ingasetyenziswa njenge-preservative yeziqhamo, i-antiseptic, kunye ne-mildew - agent, njl. Yinto eluhlaza yokwenziwa kwezinto eziphilayo, esetyenziselwa ukulawula iimpendulo ze-bromination ezinamandla aphantsi, kwaye ikwasetyenziswa ekuveliseni izongezo zerabha kunye namayeza. Ingasetyenziselwa ukuvelisa i-bromoacetonitrile njengeyeza. Kwishishini lee-pesticide, isetyenziselwa ukuvelisa i-thiabendazole kwaye ingasetyenziswa njenge-preservative yeziqhamo, i-antiseptic, kunye ne-mildew - agent. Isetyenziswa njenge-reagent yokuchonga i-alcohols eziphambili, zesibini, nezesithathu kunye nesongezo seemveliso zerabha, kwaye ikwasetyenziswa nakwi-organic synthesis. Yi-arhente ebalulekileyo ye-brominating kwi-organic synthesis. Kwishishini lee-pharmacy, idla ngokusetyenziswa njenge-brominating agent kwi-antibiotiki, njengokwenziwa kwe-cefaloram. Ukwenziwa kwezinto eziphilayo. Ukufakwa kwe-bromination ye-olefins. Ukufakwa kwe-ethanol kwi-aldehydes kunye nee-ketones. Ukuxutywa kwee-aldehydes zibe yi-bromo - acids. I-arhente ye-brominating esebenza ngeendlela ezininzi. Isetyenziswa kwi-oxidation reaction ye-tryptophan, kodwa inqanaba le-oxidation le-tyrosine, i-histidine, kunye nee-methionine residues linokuba liphantsi. Ingasetyenziselwa nokuguqula amaqela e-ribosomal thiol. Yi-arhente ye-brominating yendalo yonke. Xa kukho i-AIBN, ii-silyl ethers zinokuxutywa zibe yi-aldehydes. Yi-reagent ye-brominating yendalo yonke; isetyenziselwa ukuxutywa kwe-tryptophan, nangona kunokubakho ii-tyrosine, i-histidine, kunye nee-methionine oxidation residues kancinci; isetyenziselwa ukuguqula amaqela e-ribosomal thiol; xa kukho i-AIBN, ii-silyl ethers ziyaxutywa zibe yi-aldehydes.

Ukupakishwa kunye nokuthunyelwa

25KG/Idrama okanye ngokweemfuno zomthengi.
Yeyokwempahla eqhelekileyo kwaye inokuhanjiswa ngolwandle nangomoya

Gcina kwaye ugcine

Ixesha lokuphelelwa: Iinyanga ezingama-24 ukususela kumhla wokwenziwa kwayo kwiphakheji yokuqala engavulwanga igcinwe kwindawo epholileyo neyomileyo kude nelanga elithe ngqo, amanzi.
Indawo yokugcina umoya, Ukomisa kubushushu obuphantsi, Yahlulwe kwii-oxidants, ii-asidi.

Indawo yokugcina impahla kufuneka ifumane umoya, igcinwe kubushushu obuphantsi kwaye yomile. Yigcine ngokwahlukileyo kwi-aniline, i-dialkyl sulfide, i-hydrazine hydrate, ii-peroxides kunye ne-propionitrile.