Ụlọ ọrụ na-enye ọnụahịa kacha mma Sodium triacetoxyborohydride ntụ ntụ CAS 56553-60-7

Ụzọ mbupu dị mma CAS 56553-60-7 ntụ ntụ Sodium triacetoxyborohydride
Aha ngwaahịa: sodium triacetoxyborohydride
CAS: 56553-60-7
Usoro ihe omimi: C6H10BNaO6
Ọdịdị: ọcha ntụ ntụ
Ọdịnaya: 95.0% ~ 105.0% (titration)
Na-eji: Maka mmeghachi omume mbelata nke ketone na aldehyde, mbelata amination ma ọ bụ lactamization nke carbonyl compound na amine, na mbelata amination nke aryl aldehyde.
Ike: 5 ~ 10mt / ọnwa

Sodium triacetoxyborohydride (STAB) CAS 56553-60-7 makwaara dị ka sodium triacetoxyhydroborate, nke a na-akpọkarị STAB, bụ ngwakọta kemịkalụ nwere usoro Na (CH3COO) 3BH.Dị ka borohydrides ndị ọzọ, a na-eji ya dị ka onye na-ebelata ihe na-emepụta ihe.A na-akwado nnu a na-enweghị agba site na protonolysis nke sodium borohydride na acetic acid: NaBH4 + 3 HO2CCH3 → NaBH (O2CCH3) 3 + 3 H2.

N'ihi mmetụta siri ike na eletrọnịkị nke otu acetoxy, sodium triacetoxyborohydride bụ ihe na-ebelata ihe dị nro karịa sodium borohydride ma ọ bụ ọbụna sodium cyanoborohydride.Ọzọkwa, NaBH (OAc) 3 na-ezere ngwaahịa akụkụ na-egbu egbu nke sodium cyanoborohydride na-emepụta.Sodium triacetoxyborohydride dabara adaba karịsịa maka mbelata amination nke aldehydes na ketones.

Otú ọ dị, n'adịghị ka sodium cyanoborohydride, triacetoxyborohydride bụ mmiri na-enwe mmetụta, na mmiri enweghị ike iji dị ka ihe mgbaze na reagent a, ma ọ bụ dakọtara na methanol.Ọ na-emegharị nwayọọ nwayọọ na ethanol na isopropanol ma nwee ike iji ya mee ihe.Enwere ike iji NaBH (OAc) 3 maka mbelata alkylation nke amines nke abụọ na aldehyde-bisulfite adducts.