Njira yotumizira yotetezeka ku China CAS 56553-60-7 ufa Sodium triacetoxyborohydride Kupanga ndi Fakitale

Njira yotumizira yotetezeka CAS 56553-60-7 ufa Sodium triacetoxyborohydride

Kufotokozera Kwachidule:

Dzina la mankhwala: Sodium triacetoxyborohydride

CAS: 56553-60-7

Fomula ya maselo: C6H10BNaO6

Maonekedwe: ufa woyera

Zomwe zili: 95.0% ~ 105.0% (titration)

Kugwiritsa Ntchito: Pa kuchepetsa kuyankha kwa ketone ndi aldehyde, kuchepetsa kuletsa kapena kuyamwa kwa carbonyl compound ndi amine, komanso kuchepetsa kuletsa kwa aryl aldehyde

Mphamvu: 5 ~ 10mt/mwezi

Tumizani imelo kwa ife

Tsatanetsatane wa Zamalonda

Ma tag a Zamalonda

Mafotokozedwe Akatundu

Dzina la mankhwala: Sodium triacetoxyborohydride

CAS: 56553-60-7

Fomula ya maselo: C6H10BNaO6

Maonekedwe: ufa woyera

Zomwe zili: 95.0% ~ 105.0% (titration)

Kugwiritsa Ntchito: Pa kuchepetsa kuyankha kwa ketone ndi aldehyde, kuchepetsa kuletsa kapena kuyamwa kwa carbonyl compound ndi amine, komanso kuchepetsa kuletsa kwa aryl aldehyde

Mphamvu: 5 ~ 10mt/mwezi

Sodium triacetoxyborohydride (STAB) CAS 56553-60-7 yomwe imadziwikanso kuti sodium triacetoxyhydroborate, yomwe nthawi zambiri imafupikitsidwa ndi STAB, ndi mankhwala omwe ali ndi formula Na(CH3COO)3BH. Monga ma borohydride ena, amagwiritsidwa ntchito ngati chochepetsera mu kapangidwe ka organic. Mchere wopanda utoto uwu umakonzedwa ndi protolysis ya sodium borohydride yokhala ndi acetic acid: NaBH4 + 3 HO2CCH3 → NaBH(O2CCH3)3 + 3 H2.

Chifukwa cha mphamvu ya steric ndi zamagetsi ya magulu a acetoxy, sodium triacetoxyborohydride ndi yochepetsera thupi kuposa sodium borohydride kapena sodium cyanoborohydride. Kuphatikiza apo, NaBH(OAc)3 imapewa zinthu zina zoopsa zomwe zimapangidwa ndi sodium cyanoborohydride. Sodium triacetoxyborohydride ndi yoyenera kwambiri pochepetsa ma aldehydes ndi ma ketones.
Komabe, mosiyana ndi sodium cyanoborohydride, triacetoxyborohydride imakhudzidwa ndi madzi, ndipo madzi sangagwiritsidwe ntchito ngati chosungunulira ndi reagent iyi, komanso samagwirizana ndi methanol. Amachitapo kanthu pang'onopang'ono ndi ethanol ndi isopropanol ndipo angagwiritsidwe ntchito ndi izi. NaBH(OAc)3 ingagwiritsidwenso ntchito pochepetsa alkylation ya ma secondary amines okhala ndi aldehyde-bisulfite adducts.