An efficient carbonylative procedure for the synthesis of 3-arylquinoin-2(1H)-ones has been established. Through a palladium-catalyzed aminocarbonylation of benzylchlorides with anthranils, a variety of 3-arylquinoin-2(1H)-one products were obtained in moderate to excellent yields with good functional group tolerance.
已经建立了用于合成 3-arylquinoin-2(1 H )-ones 的有效羰基化方法。通过钯催化的苄基氯与邻氨基苯甲酰氨基羰基化反应,以中等至优异的收率获得了多种 3-arylquinoin-2(1 H )-one 产物,具有良好的官能团耐受性。
Copper(I) Iodide Catalyzed Synthesis of Quinolinones via Cascade Reactions of 2-Halobenzocarbonyls with 2-Arylacetamides
An efficient copper-catalyzed method for the synthesis of quinolinones, pyridinones, and heteroannulated pyridinones via cascade reactions of substituted 2-iodo-, 2-bromo-, and 2-chlorobenzocarbonyls with 2-arylacetamides is reported. The protocol works well for the reaction of most of the 2-iodo-, 2-bromo- and 2-chlorobenzocarbonyls with 2-arylacetamides. copper iodide - diamines - cascade reactions
Metal-free ring expansion of indoles with nitroalkenes: a simple, modular approach to 3-substituted 2-quinolones
作者:Alexander V. Aksenov、Alexander N. Smirnov、Nicolai A. Aksenov、Inna V. Aksenova、Jonathon P. Matheny、Michael Rubin
DOI:10.1039/c4ra14406f
日期:——
3-Substituted 2-quinolones are obtained via a novel metal-free transannulation reaction of 2-nitroolefins with 2-substitutedindoles in polyphosphoric acid. This acid-mediated cascade transformation operates via the ANRORC (Addition of Nucleophile, Ring Opening, and Ring Closure) mechanism and can be used in combination with the Fisher indole synthesis to offer a practical three-component hetero-annulation
Metal-free transannulation reaction of indoles with nitrostyrenes: a simple practical synthesis of 3-substituted 2-quinolones
作者:Alexander V. Aksenov、Alexander N. Smirnov、Nicolai A. Aksenov、Inna V. Aksenova、Liliya V. Frolova、Alexander Kornienko、Igor V. Magedov、Michael Rubin
DOI:10.1039/c3cc45696j
日期:——
3-Substituted 2-quinolones are obtained via a novel, metal-free transannulation reaction of 2-substituted indoles with 2-nitroalkenes in polyphosphoric acid. The reaction can be used in conjunction with the Fisher indole synthesis offering a practical three-component heteroannulation methodology to produce 2-quinolones from arylhydrazines, 2-nitroalkenes and acetophenone.
A palladium-catalyzedcarbonylative cyclization of benzylchlorides with o-nitrobenzaldehydes has been developed for the synthesis of 3-arylquinolin-2(1H)-ones. Mo(CO)6 played a dual role as both a CO surrogate and a reductant in this carbonylative transformation.
已经开发了钯催化的苄基氯与邻硝基苯甲醛的羰基化环化反应,用于合成 3-芳基喹啉-2(1 H )-酮。Mo(CO) 6在该羰基化转化中扮演着CO替代物和还原剂的双重角色。