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

Kwere Chemical bụ onye na-eduga China 2-Bromo-5-nitropyridine CAS 4487-59-6 onye na-emepụta ihe, onye na-ebubata ya na onye mbupụ. Na-agbaso nchụso nke ngwaahịa zuru oke, nke mere na 2-Bromo-5-nitropyridine CAS 4487-59-6 nwere afọ ojuju nke ọtụtụ ndị ahịa. Shandong kwere

Anyị dị mma na uru nke ngwaahịa kemịkal dị n'ọhịa. A na-ebupụ ngwaahịa anyị na Europe, United States, Japan, South Korea, Southeast Asia na obodo na mpaghara ndị ọzọ. Na sayensị na nkà na ụzụ dị ka onye ndu, ịkwụwa aka ọtọ dị ka ntọala, àgwà dị ka ndụ, na ịdabere na ụlọ ọrụ echiche nke ọhụrụ na mmepe, anyị na-atụ anya n'ezie na-eguzobe mgbanwe na nnukwu imekọ ihe ọnụ na anụ ụlọ na mba ọzọ ahịa ike ọganihu!

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

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

Ebe mgbaze 139-141°C (ọkụ)
Ebe esi esi 145-147°C/10mmHg(ọkụ.)
Njupụta 1.8727 (nke siri ike)
Ntụgharị ntụgharị 1.6200 (atụmatụ)
Ebe ọkụ ọkụ 145-147°C/10mm
Ọnọdụ nchekwa Inertatmosphere, 2-8°C
Solubility Chloroform, HotMethanol
MorphologyCrystalline ntụ ntụ
Ọnụọgụ acidity (pKa) -3.24± 0.10 (buru amụma)
AgbaLightyellowtolightbrown

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

Ngwakọta nke 1.53 g (10.94 mmol) nke 2-hydroxy-5-nitropyridine, 4.1 g (12.71 mmol) nke tetrabutylammonium bromide na 3.71 g (26.1 mmol) nke P2O5 na 29 ml nke benzene dị ọkụ na reflux. A na-eme ka ngwakọta ahụ dị jụụ n'ime ụlọ ahụ, a na-ekewa oyi akwa nke elu site na decantation, na obere oyi akwa na benzene triturated (3 x 6 ml). A na-ejikọta ihe ndị ahụ na akụkụ nke organic, saturated solution nke NaHCO3 na NaCl, wee kpoo MgSO4. A na-ewepụ ihe mgbaze ahụ n'okpuru nrụgide belatara, ma megharịa ihe fọdụrụnụ site na ether petroleum. Mpụta 1.7g (48%). Mp138-139°C, (bp40-70°C).