Introduction of Allyl and Prenyl Side-Chains into Aromatic Systems by Suzuki Cross-Coupling Reactions
作者:Darío C. Gerbino、Sandra D. Mandolesi、Hans-Günther Schmalz、Julio C. Podestá
DOI:10.1002/ejoc.200900234
日期:2009.8
for the synthesis of allyl- and prenylaromatic compounds. The first part deals with the preparation of boron reagents like arylboronic acids and their pinacol esters as well as of pinacol allyl- and prenylboronates. The second part of the paper is devoted to the use of these boron reagents in Suzuki–Miyaura cross-coupling reactions leading to allylation and prenylation of aromatic compounds. Of the
A new bench stable reagent that is easily synthesized and handled is investigated for its use in radical prenylation of diverse organic molecules. It has demonstrated high functional group compatibility and can be used with numerous photocatalytic methods to give prenylated products from aryl iodides, bromides, anilines, thiols and alkyl halides.
Regioselective Cross-Coupling of Allylboronic Acid Pinacol Ester Derivatives with Aryl Halides via <i>Pd-PEPPSI-IPent</i>
作者:Jennifer L. Farmer、Howard N. Hunter、Michael G. Organ
DOI:10.1021/ja308613b
日期:2012.10.24
The cross-coupling reactions of allylboronic acid pinacol ester derivatives with aryl and heteroaryl halides occurred with high selectivity (>97%) at the α-carbon of the allylboron reagent in the presence of Pd-PEPPSI-IPent precatalyst and 5 M KOH in refluxing THF. In the case of trisubstituted allylboronates with different substituents on the olefin, minor olefin geometry isomerization was observed
Pd(0)-CATALYZED ELECTRO-REDUCTIVE HYDROCOUPLING OF ARYL HALIDES WITH OLEFINS AND ACETYLENES
作者:Sigeru Torii、Hideo Tanaka、Kazuo Morisaki
DOI:10.1246/cl.1985.1353
日期:1985.9.5
Electro-reductive hydrocoupling of aryl halides with olefins and acetylenes has been performed in an Et4NOTs-DMF-(Pb cathode) system in the presence of catalytic amounts of PdCl2(Ph3P)2.