Ubonelelo lwefektri ngexabiso elingcono kakhulu I-Sodium triacetoxyborohydride powder CAS 56553-60-7

Indlela yokuthumela ekhuselekileyo CAS 56553-60-7 powder Sodium triacetoxyborohydride
Igama lemveliso: Sodium triacetoxyborohydride
CAS: 56553-60-7
Ifomula yemolekyuli: C6H10BNaO6
Ukubonakala: umgubo omhlophe
Umxholo: 95.0%~105.0%(titration)
Ukusetyenziswa: Ukunciphisa i-amination reaction ye-ketone kunye ne-aldehyde, i-amination yokunciphisa okanye i-lactamization ye-carbonyl compound kunye ne-amine, kunye ne-reductive amination ye-aryl aldehyde.
Umthamo: 5 ~ 10mt/ngenyanga

I-sodium triacetoxyborohydride (STAB) CAS 56553-60-7 eyaziwa nangokuthi i-sodium triacetoxyhydroborate, ngokuqhelekileyo i-STAB efinyeziweyo, i-chemical compound kunye ne-formula Na (CH3COO) 3BH.Njengezinye i-borohydrides, isetyenziswa njenge-arhente yokunciphisa kwi-organic synthesis.Le tyuwa engenambala ilungiswa ngeprotonolysis ye-sodium borohydride nge-acetic acid: NaBH4 + 3 HO2CCH3 → NaBH(O2CCH3)3 + 3 H2.

Ngenxa yeziphumo ze-steric kunye ne-elektroniki zamaqela e-acetoxy, i-sodium triacetoxyborohydride yi-arhente yokunciphisa ebuthathaka kune-borohydride ye-sodium okanye i-sodium cyanoborohydride.Ngaphezu koko, i-NaBH(OAc) i-3 inqanda i-side-products enetyhefu eyenziwa yi-sodium cyanoborohydride.I-sodium triacetoxyborohydride ifaneleka ngokukodwa kwii-aminations zokunciphisa i-aldehydes kunye neetoni.

Nangona kunjalo, ngokungafani ne-sodium cyanoborohydride, i-triacetoxyborohydride ayinamanzi, kwaye amanzi akanakusetyenziswa njenge-solvent kunye nale reagent, kwaye ayihambelani ne-methanol.Isebenza kuphela ngokucothayo kunye ne-ethanol kunye ne-isopropanol kwaye ingasetyenziswa kunye nezi.I-NaBH (OAc) 3 ingasetyenziselwa ukunciphisa i-alkylation ye-amine yesibini kunye ne-aldehyde-bisulfite adducts.