作者:Jimei Li、Jie Zhang、Mingfei Li、Chenyang Zhang、Yongkun Yuan、Renhua Liu
DOI:10.1039/c8cc09369e
日期:——
2-hydroxy-1,4-naphthoquinones with olefins to produce naphtha[2,3-b]furan-4,9-diones and hydrogen (H2). The reaction is catalyzed by commercially available Pd/C without oxidants and hydrogen acceptors, thereby providing an intrinsically waste-free approach for the synthesis of functionalized and potentially biologically relevant naphtha[2,3-b]furan-4,9-diones.
已经开发了一种反向氢解工艺,用于将2-羟基-1,4-萘醌与烯烃进行两点偶联,以生产石脑油[2,3 - b ]呋喃-4,9-二酮和氢(H 2)。该反应由市售的Pd / C催化,不含氧化剂和氢受体,从而为合成功能化的和潜在生物学相关的石脑油[2,3 - b ]呋喃-4,9-二酮提供了一种本质上无浪费的方法。
A facile, three-component domino protocol for the microwave-assisted synthesis of functionalized naphtho[2,3-b]furan-4,9-diones in water
作者:Pitchaimani Prasanna、Kamaraj Balamurugan、Subbu Perumal、J. Carlos Menéndez
DOI:10.1039/c0gc00952k
日期:——
A three-component domino reaction of 2-hydroxy-1,4-naphthoquinone, aromatic aldehydes and a pyridinium salt in the presence of ammonium acetate, under microwave irradiation and using water as solvent, furnished a library of novel 2-arylcarbonyl-3-aryl-4,9-dihydronaphtho[2,3-b]furan-4,9-diones in good yields, in a transformation that presumably proceeds via an α,β-unsaturated triketone generation/Michael
Base-controlled selective construction of polysubstituted dihydrofuran and furan derivatives through an I2-mediated cyclization
作者:Chun-Bao Miao、Rui Liu、Yan-Fang Sun、Xiao-Qiang Sun、Hai-Tao Yang
DOI:10.1016/j.tetlet.2016.12.078
日期:2017.2
A base-controlled formal [3 + 2] cycloaddition of 1,3-dicarbonyl compounds to enones via an I-2-mediated cyclization was reported. Highly functionalized dihydrofurans and furans were selectively obtained under I-2/DMAP and I-2/DBU conditions in the cyclization step, respectively. (C) 2016 Elsevier Ltd. All rights reserved.