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.
Heoi ano, he rereke te ahua o te konutai cyanoborohydride, he tairongo te triacetoxyborohydride ki te wai, a, kaore e taea te whakamahi i te wai hei whakarewa ki tenei reagent, kaore 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.
