Water-Controlled Regioselectivity of Pd-Catalyzed Domino Reaction Involving a C−H Activation Process: Rapid Synthesis of Diverse Carbo- and Heterocyclic Skeletons
摘要:
A palladium-catalyzed domino reaction involving a C-H activation process to synthesize diverse carbo- and heterocyclic skeletons was developed. H2O (as cosolvent) is used to control the regioselectivity.
Ligand‐Enabled Palladium‐Catalyzed Through‐Space C−H Bond Activation via a Carbopalladation/1,4‐Pd Migration/C−H Functionalization Sequence
作者:Su Chen、Prabhat Ranjan、Nagarajan Ramkumar、Luc Van Meervelt、Erik V. Van der Eycken、Upendra K. Sharma
DOI:10.1002/chem.202001582
日期:2020.11.6
We report, herein, a palladium‐catalyzed cascade comprising carbopalladation, 1,4‐Pd‐migration and C(sp2)−C(sp2) bond formation to construct a variety of bis‐heterocyclic frameworks in a single operational step. The methodology provides a direct approach to introduce an oxadiazole core at a remote location without any functional group obligation, with moderate to good yields.
Palladium-Catalyzed Domino Heck/Aryne Carbopalladation/C–H Functionalization: Synthesis of Heterocycle-Fused 9,10-Dihydrophenanthrenes
作者:Tuanli Yao、Dan He
DOI:10.1021/acs.orglett.6b03833
日期:2017.2.17
A novel palladium-catalyzed dominoHeck/aryne carbopalladation/C–H functionalization reaction using in situ generated arynes has been developed in which three new C–C bonds and a carbon quaternary center are formed. This methodology affords moderate to excellent yields of heterocycle-fused 9,10-dihydrophenanthrenes.
Palladium-catalyzed domino Heck/intermolecular cross-coupling: efficient synthesis of 4-alkylated isoquinoline derivatives
作者:Tuanli Yao、Tao Liu、Changhui Zhang
DOI:10.1039/c6cc10075a
日期:——
A highly efficient Pd-catalyzed Heck-type cascade process with 2-(1-alkynyl)benzaldimines has been developed, which provides access to a broad range of 4-alkylated isoquinoline derivatives in moderate to good yields. The [sigma]-alkylpalladium(II)...