CAS: 39856-58-1|3-Amino-2-Bromopyridine

Kev taw qhia thiab kev siv CAS:39856-58-1|3-Amino-2-bromopyridine

{{0}}Bromo-3-aminopyridine yog ib lub lauj kaub synthesis ntawm pyrrolo[3,2-b]pyridine/indole ntawm palladium-catalyzed alkynylation-heterocyclization ntawm (amino)bromopyridine/ bromoaniline nrog alkynes. Muaj txiaj ntsig reagent. Kev npaj ntawm 2-bromo-3-aminopyridine tuaj yeem tau los ntawm 3-aminopyridine ua raw khoom los ntawm NBS bromination. Noj 47 grams ({22}}.5 mol) ntawm 3-aminopyridine thiab yaj hauv 750 ml (15 npaug ntawm tus nqi) ntawm CH2Cl2. Siv cov dej khov qhuav thiab ethanol los tswj qhov kub thiab txias -10 degree (sab hauv qhov kub) hauv 1-liter peb-caj dab, thiab ntxiv 89 grams hauv batch. (0.5mol) NBS yog ntxiv hauv li 15 feeb. Tom qab 15 feeb ntawm cov tshuaj tiv thaiv, cov khoom siv raw yuav luag ploj. Ntxiv dej rau kev sib cais, rho tawm cov theem aqueous nrog dichloromethane, ziab cov txheej txheem organic ua ke, tig qhuav, thiab siv dichloromethane / roj av ether=1:3 Siv cov eluent hla hauv kem kom tau 25 grams ntawm {{29. }}bromo-3-aminopyridine.

Specification ntawm CAS: 39856-58-1|3-Amino-2-bromopyridine

Melting point 76-80 degree
Kub taw tes 292.5 ± 2 0.0 degree (Tshaj tawm)
Qhov ceev 1.710± 0.06g/cm3 (Predicted)
Cia tej yam kev mob Cia nyob rau hauv qhov chaw tsaus, kaw nyob rau hauv qhuav, Chav kub
Acidity coefficient (pKa) 1.72 ± 0.10 (Predicted)
Daim ntawv crystalline hmoov
Xim beige rau tsaus xim av

Pob ntawm CAS:39856-58-1|3-Amino-2-bromopyridine

25kg / nruas

Cov khoom no siv tau rau 24 lub hlis txij li hnub tsim khoom thaum khaws cia hauv lub xeev sov so.

Kev nyab xeeb thiab kev thauj mus los

Cov khoom no yuav tsum tau khaws cia thiab kaw hauv chav tsev kub. Cov neeg siv khoom yuav tsum ua tib zoo nyeem cov khoom kho mob, cov ntaub ntawv kev nyab xeeb cov ntaub ntawv (MSDS), thiab cov ntawv sau ua ntej siv, paub txog cov khoom lag luam cov ntaub ntawv kev nyab xeeb, cov lus qhia ua haujlwm, thiab kev cuam tshuam ib puag ncig, thiab hnav kev tiv thaiv tus kheej tsim nyog raws li qhov xav tau. khoom siv.

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