Palladium-catalyzed hydroarylation of alkynes with arylboronic acids
作者:Xiaoling Xu、Jiuxi Chen、Wenxia Gao、Huayue Wu、Jinchang Ding、Weike Su
DOI:10.1016/j.tet.2010.01.086
日期:2010.3
Reaction of symmetrical and unsymmetrical alkynes with arylboronicacids, using PdCl2 as catalyst source and i-Pr2NPPh2 as ligand, afforded trisubstituted alkenes with regioselectivity in good to excellent yields without a common additional acetic acid. Its efficiency has been demonstrated by its good functional groups, high yield and crowded substrates.
Palladium-catalyzed desulfitative hydroarylation of alkynes with sodium sulfinates
作者:Saiwen Liu、Yang Bai、Xiangxiang Cao、Fuhong Xiao、Guo-Jun Deng
DOI:10.1039/c3cc43723j
日期:——
A palladium-catalyzeddesulfitative hydroarylation of alkynes with arylsulfinicacid sodium salts is described. The reaction showed good regio- and stereoselectivity, and afforded the hydroarylation products in good yields. Various functional groups were well tolerated under the optimized reaction conditions.
Palladium‐Catalyzed C−H Alkenylation of Arenes with Alkynes: Stereoselective Synthesis of Vinyl Chlorides via a 1,4‐Chlorine Migration
作者:Zhen Li、Wei‐Liang Duan
DOI:10.1002/anie.201808866
日期:2018.12.3
A directing group‐free, ligand‐promoted palladium‐catalyzed C−H arylation of internal alkynes with simple arenes was developed. Alkenyl chlorides resulting from a 1,4‐chlorine migration or trisubstituted alkenes were produced in moderate to good yields depending on the type of alkyne.
REACTIONS OF BENZENES WITH ACETYLENES CATALYZED BY RHODIUM CARBONYL UNDER CARBON MONOXIDE
作者:Pangbu Hong、Bo-Re Cho、Hiroshi Yamazaki
DOI:10.1246/cl.1979.339
日期:1979.4.5
The reaction of benzene with diphenylacetylene catalyzed by Rh4(CO)12 under carbonmonoxide gives triphenylethylene and 2,3-diphenylindenone. The reactions of mono-/di-substituted benzenes with the acetylene also give the corresponding olefins and 2,3-diphenylindenones.
Synthesis of Vinylgermanes via the Au/TiO<sub>2</sub>-Catalyzed <i>cis</i>-1,2-Digermylation of Alkynes and the Regioselective Hydrogermylation of Allenes
作者:Anastasia Louka、Manolis Stratakis
DOI:10.1021/acs.orglett.1c00997
日期:2021.5.7
In the presence of Au/TiO2 (1 mol %), terminal alkynes react quantitatively with stoichiometric amounts of the unactivated digermane Me3Ge-GeMe3, forming exclusively cis-1,2-digermylated alkenes. We also establish the Au/TiO2-catalyzed hydrogermylation of terminal allenes with Et3GeH, which exhibits a highlyregioselective mode of addition on the more substituted double bond forming vinylgermanes.
在Au / TiO 2(1 mol%)的存在下,末端炔烃与化学计量的未活化的Digermane Me 3 Ge-GeMe 3进行定量反应,仅形成顺式-1,2-二聚二甲基化的烯烃。我们还建立了用Et 3 GeH的Au / TiO 2催化的末端烯丙基加氢麦芽酰化反应,该化合物在形成更多取代的双键的乙烯基锗烷上表现出高度的区域选择性加成模式。此外,我们提供了有关Pd纳米颗粒催化的1,2-二聚二甲基烯烃与碘代芳烃的CC偶联的初步结果。