2-Bromo-5-nitropyridine CAS 4487-59-6

Believe Chemical waa hormoodka Shiinaha 2-Bromo-5-nitropyridine CAS 4487-59-6 soo saare, alaab-qeybiye iyo dhoofiye. U hoggaansanaanta raadinta tayada qumman ee alaabta, si markaa 2-Bromo-5-nitropyridine CAS 4487-59-6 ay ku qanacsan yihiin macaamiil badan. Shandong Rumayso

Waxaan ku fiicanahay faa'iidooyinka alaabta kiimikada ee goobta. Alaabadayada waxaa loo dhoofiyaa Yurub, Mareykanka, Japan, Kuuriyada Koonfureed, Koonfur-bari Aasiya iyo dalal kale iyo gobollada. Iyada oo sayniska iyo tignoolajiyada ay yihiin hagaha, daacadnimada aasaaska, tayada nolosha, iyo ku tiirsanaanta fikradda ganacsi ee hal-abuurka iyo horumarka, waxaan si dhab ah u rajaynaynaa in aan abuurno is-weydaarsi iyo iskaashi ballaaran oo lala yeesho macaamiisha gudaha iyo kuwa shisheeye si loo abuuro barwaaqo!

2-Bromo-5-nitropyridine CAS 4487-59-6

2-Bromo-5-nitropyridine CAS 4487-59-6 Guryaha Kiimikada

Barta dhalaalka 139-141°C (iftiin)
Barta karkarinta 145-147°C/10mmHg( shidday)
Cufnaanta 1.8727 (qiyaasta)
Tusmada dib-u-celinta 1.6200 (qiyaas)
Barta fiishka 145-147°C/10mm
Xaaladaha kaydinta Inertatmosphere, 2-8°C
Solubility Chloroform, HotMethanol
MorphologyCrystalline Powder
Isku-dhafka aysiidhka (pKa) -3.24± 0.10 (La saadaaliyay)
Midabka Iftiinka jaalaha ah iyo nalka brown

2-Bromo-5-nitropyridine CAS 4487-59-6 Codsiga

Isku darka 1.53 g (10.94 mmol) ee 2-hydroxy-5-nitropyridine, 4.1 g (12.71 mmol) tetrabutylammonium bromide iyo 3.71 g (26.1 mmol) ee P2O5 ee 29 ml of benzene ayaa lagu kululeeyey reflux. Isku darka ayaa la qaboojiyey heerkulka qolka, lakabka sare waxaa lagu kala soocay goynta, lakabka hoosena waxaa lagu jarjaray benzene (3 x 6 ml). Soosaarayaasha waxaa lagu daray wejiga organic, lagu dhaqay xal buuxa ee NaHCO3 iyo NaCl, oo lagu qallajiyey MgSO4. Walxaha ayaa lagu damiyay cadaadis hoos u dhacay, hadhaaga waxa dib looga dhigay eter batroolka. Wax-soo-saarka 1.7g (48%). Mp138-139°C, (bp40-70°C).