Te ara tuku haumaru CAS 56553-60-7 paura konutai triacetoxyborohydride
Ingoa hua: Sodium triacetoxyborohydride
CAS:56553-60-7
tātai rāpoi:C6H10BNaO6
Te ahua: te paura ma
Ihirangi: 95.0%~105.0%(titrate)
Whakamahinga: Mo te tauhohenga whakaheke amination o te ketone me te aldehyde, te amination whakaiti, te lactamization ranei o te pūhui waro me te amine, me te amination whakaiti o te aryl aldehyde
Te kaha: 5 ~ 10mt / marama
Ko te konutai triacetoxyborohydride (STAB) CAS 56553-60-7 e mohiotia ana ano ko te konutai triacetoxyhydroborate, te nuinga o te whakapoto STAB, he pūhui matū me te tātai Na(CH3COO)3BH.Pērā i ētahi atu borohydride, ka whakamahia hei kaihoko whakaheke i roto i te whakahiato pararopi.Ka mahia tenei tote taekore e te protonolysis o te konutai borohydride me te waikawa acetic: NaBH4 + 3 HO2CCH3 → NaBH(O2CCH3)3 + 3 H2.
Engari, he rereke ki te konutai cyanoborohydride, ko te triacetoxyborohydride he tairongo-wai, a, kaore e taea te whakamahi i te wai hei whakarewa ki tenei reagent, kaore ano hoki i te hototahi ki te methanol.He puhoi te mahi ki te waihano me te isopropanol ka taea te whakamahi me enei.Ka taea hoki te NaBH(OAc)3 te whakamahi mo te whakaheke whakaheke o nga amine tuarua me nga taapiri aldehyde-bisulfite.
Pls whakapā mai ki te tiki COA me MSDS.Mihi.
