Ara tuku haumaru CAS 56553-60-7 paura konutai triacetoxyborohydride
Ingoa hua: Konutai triacetoxyborohydride
CAS:56553-60-7
Tātai ngota: C6H10BNaO6
Āhua: paura mā
Ihirangi:95.0%~105.0%(whakapūtanga ira)
Ngā Whakamahinga: Mō te tauhohenga whakaiti i te amination o te ketone me te aldehyde, te amination whakaiti, te lactamization rānei o te pūhui carbonyl me te amine, me te amination whakaiti o te aryl aldehyde
Te kaha: 5~10 mita/marama
Ko te Sodium triacetoxyborohydride (STAB) CAS 56553-60-7 e mōhiotia ana ko te sodium triacetoxyhydroborate, e whakarapopototia ana ko te STAB, he matū kei roto te tātai Na(CH3COO)3BH. Pērā i ētahi atu borohydride, ka whakamahia hei kaiwhakaiti i roto i te hanga matū waro. Ka whakaritea tēnei tote kore tae mā te protonolysis o te sodium borohydride me te waikawa acetic: NaBH4 + 3 HO2CCH3 → NaBH(O2CCH3)3 + 3 H2.
Heoi, he rerekē te triacetoxyborohydride ki te konutai cyanoborohydride, he tairongo ki te wai, ā, kāore e taea te whakamahi i te wai hei whakarewa me tēnei matū, kāore hoki e hototahi ki te methanol. He puhoi noa te tauhohenga ki te etanoru me te isopropanol, ā, ka taea te whakamahi me ēnei. Ka taea hoki te whakamahi i te NaBH(OAc)3 mō te alkylation whakaiti o ngā amine tuarua me ngā tāpiringa aldehyde-bisulfite.
Tēnā whakapā mai ki a mātou kia whiwhi ai i te COA me te MSDS. Ngā mihi.
