Ipese ile-iṣẹ idiyele ti o dara julọ Sodium triacetoxyborohydride lulú CAS 56553-60-7

Ailewu ọna gbigbe CAS 56553-60-7 powder Sodium triacetoxyborohydride
Orukọ ọja: Sodium triacetoxyborohydride
CAS: 56553-60-7
Ilana molikula: C6H10BNaO6
Irisi: funfun lulú
Akoonu: 95.0% ~ 105.0% (titration)
Nlo: Fun ifaseyin idinku amination ti ketone ati aldehyde, amination idinku tabi lactamization ti carbonyl yellow ati amine, ati idinku idinku ti aryl aldehyde
Agbara: 5 ~ 10mt / osù

Sodium triacetoxyborohydride (STAB) CAS 56553-60-7 ti a tun mọ ni sodium triacetoxyhydroborate, ti o wọpọ ni abbreviated STAB, jẹ akojọpọ kemikali pẹlu agbekalẹ Na (CH3COO) 3BH.Bii awọn borohydrides miiran, o jẹ lilo bi aṣoju idinku ninu iṣelọpọ Organic.Iyọ ti ko ni awọ yii ti pese sile nipasẹ protonolysis ti sodium borohydride pẹlu acetic acid: NaBH4 + 3 HO2CCH3 → NaBH(O2CCH3) 3 + 3 H2.

Nitori awọn ipa sitẹriiki ati itanna ti awọn ẹgbẹ acetoxy, iṣuu soda triacetoxyborohydride jẹ aṣoju idinku diẹ ju iṣuu soda borohydride tabi paapaa iṣuu soda cyanoborohydride.Pẹlupẹlu, NaBH (OAc) 3 yago fun awọn ọja-ẹgbẹ majele ti ipilẹṣẹ nipasẹ iṣuu soda cyanoborohydride.Iṣuu soda triacetoxyborohydride dara ni pataki fun awọn imukuro idinku ti aldehydes ati awọn ketones.

Bibẹẹkọ, laisi iṣuu soda cyanoborohydride, triacetoxyborohydride jẹ ifarabalẹ omi, ati pe omi ko le ṣee lo bi epo pẹlu reagent yii, tabi ko ni ibamu pẹlu methanol.O ṣe laiyara laiyara pẹlu ethanol ati isopropanol ati pe o le ṣee lo pẹlu iwọnyi.NaBH (OAc) 3 tun le ṣee lo fun alkylation idinku ti awọn amines keji pẹlu aldehyde-bisulfite adducts.