Generation and Tandem Reactions of 1-Alkenyl-1,1-Heterobimetallics: Practical and Versatile Reagents for Organic Synthesis
作者:Hongmei Li、Patrick J. Carroll、Patrick J. Walsh
DOI:10.1021/ja077664u
日期:2008.3.1
A practical and straightforward method for generation of versatile 1-alkenyl-1,1-heterobimetallic intermediates and their application to construction of functionalized building blocks are disclosed. Beginning with readily available air-stable 1-alkynyl-1-boronate esters, hydroboration with dicyclohexylborane generates 1-alkenyl-1,1-diboro species. In situ transmetallation with dialkylzinc reagents
Hussain, Mahmud M.; Li, Hongmei; Hussain, Nusrah, Journal of the American Chemical Society, 2009, vol. 131, p. 6516 - 6524
作者:Hussain, Mahmud M.、Li, Hongmei、Hussain, Nusrah、Urena, Mercedes、Carroll, Patrick J.、Walsh, Patrick J.
DOI:——
日期:——
The Pauson–Khand reaction using alkynylboronic esters: solving a long-standing regioselectivity issue
作者:Thierry León、Elena Fernández
DOI:10.1039/c6cc04717c
日期:——
The first intermolecularPauson-Khandreaction conducted with internal alkynylboronic esters has been described. This strategy allows the installation of the boronic ester moiety in b-position of the cyclopentenone with total...
Palladium-Catalyzed Chemoselective Allylic Substitution, Suzuki-Miyaura Cross-Coupling, and Allene Formation of Bifunctional 2-B(pin)-Substituted Allylic Acetate Derivatives
作者:Byeong-Seon Kim、Mahmud M. Hussain、Nusrah Hussain、Patrick J. Walsh
DOI:10.1002/chem.201402353
日期:2014.9.8
of organic synthesis is the control of chemoselectivity to enable the selective formation of diverse structural motifs from a readily available substrate class. Presented herein is a detailed study of chemoselectivity with palladium‐based phosphane catalysts and readily available 2‐B(pin)‐substituted allylic acetates, benzoates, and carbonates. Depending on the choice of reagents, catalysts, and reaction