2,6-二氯吡啶置于三氟甲磺酸酐,双氧水,Sodium Carbonate体系中,用 乙腈 用作溶剂,化学反应 3.5H,以70%的收率获得2,6-二氯吡啶n-氧化物 参考文献:用于将高度缺电子的吡啶氧化为n-氧化物的新型试剂组合:三氟甲磺酸酐/过碳酸钠 标题:用于将高度缺电子的吡啶氧化为n-氧化物的新型试剂组合:三氟甲磺酸酐/过碳酸钠 摘要:已经开发出一种新颖的试剂组合,Tf 2 O / Na 2 Co 3 .1.5H 2 O 2,用于将高度缺乏电子的吡啶氧化成其相应的n-氧化物.利用原位产生的过酸的n-氧化反应在温和的条件下进行,该条件允许吡啶环上具有许多官能团和取代方式. Doi:10.1016/j.Tetlet.2007.11.183
专利号:US-7687635-B2 优先权日:2002-01-22 标 题:Metal complexes useful in metathesis and other reactions 发明人:VERPOORT FRANCIS WALTER CORNELIUS; DE CLERCQ BOB 权利人:TELENE S A S 摘要:This invention provides metal complexes being useful as catalyst components in metathesis reactions and in reactions involving the transfer of an atom or group to an ethylenically or acetylenically unsaturated compound or another reactive substrate and, with respect to a sub-class thereof, for the polymerisation of α-olefins and optionally conjugated dienes, with high activity at moderate tempera-tures. It also provides methods for obtaining polymers with very narrow molecular weight distribution by means of a living reaction. It also provides methods for making said metal complexes and novel intermediates involved in such methods. It further provides derivatives of said metal complexes which are suitable for covalent bonding to a carrier, the product of such covalent bonding being useful as a supported catalyst for heterogeneous catalytic reactions. It also provides a direct one-step synthesis of pyrrole, furan and thiophene compounds from diallyl compounds.
专利号:CN-103787964-A 优先权日:2013-12-20 标 题 :Green catalyst-induced synthesis of high-content 2,6-dichloropyridine-N-oxide
专利号:US-2007185343-A1 优先权日:2004-02-26 标 题 :Metal complexes for use in olefin metathesis and atom group transfer reactions 发明人:VERPOORT FRANCIS WALTER C; DROZDZAK RENATA A; LEDOUX NELE; ALLAERT BART F 权利人:UNIV GENT 摘要:Improved catalysts useful in a number of organic synthesis reactions such as olefin metathesis and atom or group transfer reactions are made by bringing into contact a multi-coordinated metal complex comprising a multidentate Schiff base ligand, and one or more other ligands, with an acid under conditions such that said acid is able to at least partly cleave a bond between the metal and the multidentate Schiff base ligand of said metal complex, optionally through intermediate protonation of said Schiff base ligand.
专利号:EP-1577282-B1 优先权日:2004-02-26 标 题:Metal complexes for use in olefin metathesis and atom or group transfer reactions 发明人:VERPOORT FRANCIS WALTER CORNELIUS; DROZDZAK RENATA ANNA; LEDOUX NELE; ALLAERT BART FILIP 权利人:TELENE SAS 摘要:Improved catalysts useful in a number of organic synthesis reactions such as olefin metathesis and atom or group transfer reactions are made by bringing into contact a multi-coordinated metal complex comprising a multidentate Schiff base ligand, and one or more other ligands, with an acid under conditions such that said acid is able to at least partly cleave a bond between the metal and the multidentate Schiff base ligand of said metal complex, optionally through intermediate protonation of said Schiff base ligand.
专利号:CN-115160220-A 优先权日:2022-08-06 标 题 :A kind of synthesis technique of pyridine-N-oxide