Ligand-free copper-catalyzed efficient one-pot access of benzo[b]pyrido[3,2-f][1,4]oxazepinones through O-heteroarylation-Smiles rearrangement-cyclization cascade
作者:Nemai C. Ganguly、Pallab Mondal、Sushmita Roy、Partha Mitra
DOI:10.1039/c4ra11128a
日期:——
Efficient synthesis of a library of novel benzopyrido[1,4]oxazepinones was accomplished by Cs2CO3-mediated one-pot coupling of N-substituted-o-chloronicotinamides and o-halogenated phenols using cuprous oxide catalysis in DMF at 120 °C through an O-heteroarylation-Smiles rearrangement-cyclization cascade (16 examples). The C–N bond construction process is biased in favour of Smiles rearrangement allowing
通过在120°C的DMF中使用氧化亚铜催化Cs 2 CO 3介导的N-取代-邻氯烟酰胺和邻卤代酚的一锅偶联,可以有效合成新型的苯并吡啶并[1,4] a嗪酮类化合物。通过O-杂芳基-Smiles重排-环化级联反应(16个例子)。C–N键的构建过程偏向于Smiles重排,从而允许这些三环分子结构的区域选择性生成,基本没有Goldberg- N-芳基化产物,且收率良好。
Substituted pyrazole compounds useful as soluble epoxide hyrolase inhibitors
申请人:Fleck Roman Wolfgang
公开号:US20090227588A1
公开(公告)日:2009-09-10
Disclosed are compounds active against soluble epoxide hydrolase (sEH), compositions thereof and methods of using and making same.
本发明涉及对可溶性环氧水解酶(sEH)活性的化合物,其组成物和使用和制备它们的方法。
Bowden, Keith; Malik, Faisal P.; Pallett, Ken E., Journal of Chemical Research, Miniprint, 1991, # 11, p. 2901 - 2919
作者:Bowden, Keith、Malik, Faisal P.、Pallett, Ken E.、Tomlinson, Ian D.
DOI:——
日期:——
One-Pot Synthesis of 2-Arylimino-2,3-dihydropyrido[3,2-e]-1,3-thiazin-4-ones by the Reaction of Secondary 2-Chloropyridine-3-carboxamides with Aryl Isothiocyanates
A very facile method for the synthesis of 2-arylimino-2,3-dihydropyrido[3,2-e]-1,3-thiazin-4-ones has been developed. Thus, secondary 2-chloropyridine-3-carboxamides undergo addition to aromatic isothiocyanates in the presence of sodium hydride, followed by attack of the sulfur atom of the resulting adducts on the 2-position of the pyridine ring, to give the desired products in fair to good yields.
Synthesis of 2-Thioxo-2,3-dihydropyrido[3,2-e]-1,3-thiazin-4-ones by the Reaction of N-Alkyl-2-chloropyridine-3-carboxamides with Carbon Disulfide
A facile method for the preparation of 2-thioxo-2,3-dihydropyrido[3,2-e]-1,3-thiazin-4-ones by the reaction of N-alkyl-2chloropyridine-3-carboxamides with carbon disulfide in the presence of sodium hydride as a base has been developed.