WebbIntramolecular oxyacetoxylation of N-allylamides: an expeditious synthesis of oxazolines and oxazines by using a PhI(OAc) 2 /hydrogen fluoride–pyridine system. Organic & Biomolecular Chemistry 2016 , 14 (42) , 10074-10079. WebbAs one of the leading cas:32001-55-1 hydrogen fluoride-pyridine enterprises in China, we warmly welcome you to buy discount cas:32001-55-1 hydrogen fluoride-pyridine in stock here from our factory. All products for sale are with high quality and competitive price. For quotation, contact us now.
Metal‐Free Oxidative C−H Amination of 8‐Acylaminoquinolines …
WebbCAS Number: 2712-78-9 Molecular Weight: 430.04 Beilstein: 764767 EC Number: 220-308-0 MDL number: MFCD00009672 PubChem Substance ID: 24853882 NACRES: NA.22 … WebbPreparation of Zn(OPiv) 2 Pivalic acid (20.4 g, 22.6 mL, 200 mmol) was placed in a dry and argon-flushed 500 mL three-necked round-bottom flask, equipped with a magnetic stirring bar, a septum and a pressure equalizer, and was dissolved in dry THF (120 mL). The mixture was cooled at 0 °C, birthday plants quotes
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Webb1 feb. 2024 · It was found that, changing the solvent from nitromethane to 1,2-dichloroethane, was beneficial for the reaction outcome. Specifically, when PhI(OPiv) 2 was employed as oxidant, both 1a and 1b could be efficiently converted into the desired products 3a and 3b in 86 and 80% yields, respectively (Table 2, entries 1 and 2). WebbA convenient, metal-free intramolecular aminofluorination of alkenes has been developed. Employing readily available PhI(OPiv)2 and hydrogen fluoride–pyridine in the presence of BF3·OEt2, tosyl-protected pent-4-en-1-amines were converted to 3-F-piperidines in one step in good yields as well as high stereosel Webb30 dec. 2009 · 上海有机所的刘国生和吴涛等研究人员首次发现在钯的催化下,利用AgF作为氟源,PhI (OPiv) 2 为氧化剂,可以实现烯烃的分子内的氟胺化反应。. 该反应以很好的化学选择性和区域选择性得到含氟的六元含氮杂环,这类化合物目前被广泛应用于药物化学的研 … birthday plants delivered