Dicarbofunctionalization of unactivated alkenes by palladium-catalyzed domino Heck/intermolecular direct hetero arylation with heteroarenes
作者:Km Ishu、Dharmendra Kumar、Naveen Kumar Maurya、Suman Yadav、Dhananjay Chaudhary、Malleswara Rao Kuram
DOI:10.1039/d1ob00195g
日期:——
A palladium-catalyzeddomino Heck/intermolecular direct hetero arylation sequence of unactivated alkenes was developed, providing 1,2,3-triazole containing bisheterocycles bearing all-carbon quaternary centers with yields of 25–90%. The protocol was extended to 1,3,4-oxadiazoles as well. The installed triazole was further exploited for late-stage functionalizations, and the mechanistic studies indicate
Palladium-Catalyzed Reductive Aminocarbonylation of <i>o</i>-Iodophenol-Derived Allyl Ethers with <i>o</i>-Nitrobenzaldehydes to 3-Alkenylquinolin-2(1<i>H</i>)-ones
作者:Jian-Li Liu、Wei Wang、Xinxin Qi、Xiao-Feng Wu
DOI:10.1021/acs.orglett.2c00648
日期:2022.3.25
An attractive palladium-catalyzed reductive aminocarbonylation reaction of allylic ethers has been explored for the synthesis of 3-alkenylquinolin-2(1H)-one derivatives. With Mo(CO)6 as both CO surrogate and reductant, a variety of 3-alkenylquinolin-2(1H)-ones were obtained in good to excellent yields from o-iodophenol-derived allyl ethers with o-nitrobenzaldehydes as the nitrogen sources. This reaction
已经探索了一种有吸引力的钯催化的烯丙基醚的还原氨基羰基化反应,用于合成 3-alkenylquinolin-2(1 H )-one 衍生物。以Mo(CO) 6作为CO 替代物和还原剂,以邻硝基苯甲醛为氮源,由邻碘苯酚衍生的烯丙基醚以良好至优异的收率获得了多种3-alkenylquinolin-2(1 H )-one . 该反应通过级联途径进行,不依赖于以前的烯丙基羰基化反应所需的高压 CO 气体。该策略为构建 3-alkenylquinolin-2(1 H )-ones 提供了新途径。
Selectivity in the Tandem Cyclization – Carboxylation Reaction of Unsaturated Haloaryl Ethers Catalyzed by Electrogenerated Nickel Complexes
propargyl groups under CO2 allows the synthesis of benzofuranacetic acid derivatives. This novel intramolecular cyclization–carboxylation reaction is carried out in single-compartment cells and is catalyzed by [Ni(cyclam)Br2].
一系列含有烯丙基和炔丙基的 2-卤代芳基醚在 CO2 下的电化学还原允许合成苯并呋喃乙酸衍生物。这种新型的分子内环化-羧化反应在单室细胞中进行,并由 [Ni(cyclam)Br2] 催化。
Julia,M.; Baillarge,M., Bulletin de la Societe Chimique de France, 1966, p. 734 - 742
作者:Julia,M.、Baillarge,M.
DOI:——
日期:——
Julia; Baillarge, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1959, vol. 249, p. 2793