Samar da masana'anta mafi kyawun farashi Sodium triacetoxyborohydride foda CAS 56553-60-7

Hanyar jigilar kaya mai aminci CAS 56553-60-7 foda Sodium triacetoxyborohydride
Sunan samfurin: sodium triacetoxyborohydride
Saukewa: 56553-60-7
Tsarin kwayoyin halitta: C6H10BNaO6
Bayyanar: farin foda
Abun ciki: 95.0% ~ 105.0% (titration)
Yana amfani da: Don rage amination na ketone da aldehyde, reductive amination ko lactamization na carbonyl fili da amine, da reductive amination na aryl aldehyde.
Yawan aiki: 5 ~ 10mt / watan

Sodium triacetoxyborohydride (STAB) CAS 56553-60-7 kuma aka sani da sodium triacetoxyhydroborate, wanda aka fi sani da STAB, wani sinadari ne mai hade da dabara Na (CH3COO) 3BH.Kamar sauran borohydrides, ana amfani dashi azaman wakili mai ragewa a cikin ƙwayoyin halitta.Ana shirya wannan gishiri marar launi ta hanyar protonolysis na sodium borohydride tare da acetic acid: NaBH4 + 3 HO2CCH3 → NaBH (O2CCH3) 3 + 3 H2.

Sakamakon steric da lantarki na ƙungiyoyin acetoxy, sodium triacetoxyborohydride wakili ne mai sauƙi mai ragewa fiye da sodium borohydride ko ma sodium cyanoborohydride.Bugu da ƙari kuma, NaBH (OAc) 3 yana guje wa samfurori masu guba da aka haifar da sodium cyanoborohydride.Sodium triacetoxyborohydride ya dace musamman don rage abubuwan aldehydes da ketones.

Duk da haka, ba kamar sodium cyanoborohydride ba, triacetoxyborohydride yana da ruwa, kuma ba za a iya amfani da ruwa azaman sauran ƙarfi tare da wannan reagent ba, kuma bai dace da methanol ba.Yana amsawa sannu a hankali tare da ethanol da isopropanol kuma ana iya amfani dashi tare da waɗannan.Hakanan za'a iya amfani da NaBH(OAc)3 don rage alkylation na amines na biyu tare da adducts aldehyde-bisulfite.