Sahayda warshadda qiimaha ugu fiican Sodium triacetoxyborohydride budada CAS 56553-60-7

Habka dhoofinta badbaadada CAS 56553-60-7 budada Sodium triacetoxyborohydride
Magaca alaabta: Sodium triacetoxyborohydride
CAS: 56553-60-7
Qaaciddada molecular: C6H10BNaO6
Muuqaal: budo cad
Waxa ku jira: 95.0% ~ 105.0% (titration)
Waxay isticmaashaa: falcelinta dhimista amine-ka ee ketone iyo aldehyde, amine-ka-yaraynta ama lactamization of compound carbonyl iyo amine, iyo hoos u dhigista amination ee aryl aldehyde
Awoodda: 5 ~ 10mt / bishii

Sodium triacetoxyborohydride (STAB) CAS 56553-60-7 sidoo kale loo yaqaan sodium triacetoxyhydroborate, oo sida badan loo soo gaabiyo STAB, waa iskudhis kiimiko oo leh caanaha Na (CH3COO) 3BH.Sida borohydrides kale, waxaa loo isticmaalaa sidii wakiilka yaraynta ee isku-dhafka organic.Cusbadaan aan midabka lahayn waxaa lagu diyaariyaa protonolysis of sodium borohydride oo leh acetic acid: NaBH4 + 3 HO2CCH3 → NaBH(O2CCH3)3 + 3 H2.

Iyadoo ay ugu wacan tahay saamaynta istiraatijiga ah iyo elektiroonigga ah ee kooxaha acetoxy, sodium triacetoxyborohydride waa wakiil yaraynta fudud marka loo eego sodium borohydride ama xitaa sodium cyanoborohydride.Intaa waxaa dheer, NaBH (OAc) 3 waxay ka fogaataa alaabada dhinaca sunta ah ee ay dhaliso sodium cyanoborohydride.Sodium triacetoxyborohydride waxay si gaar ah ugu habboon tahay dib-u-dhiska aldehyde iyo ketones.

Si kastaba ha ahaatee, si ka duwan sodium cyanoborohydride, triacetoxyborohydride waa biyo-xasaasi ah, biyahana looma isticmaali karo dareere ahaan reagent-kan, mana la jaanqaadi karo methanol.Waxay si tartiib tartiib ah ula falgashaa ethanol iyo isopropanol waxaana loo isticmaali karaa kuwan.NaBH (OAc) 3 waxa kale oo loo isticmaali karaa alkylation-ka yaraynta aminyada sare ee aldehyde-bisulfite.