Novel and efficient bridged bis(
<i>N</i>
‐heterocyclic carbene)palladium(II) catalysts for selective carbonylative Suzuki–Miyaura coupling reactions to biaryl ketones and biaryl diketones
作者:Waseem Mansour、Mohammed Fettouhi、Bassam El Ali
DOI:10.1002/aoc.5636
日期:2020.6
BridgedN,N′‐substituted bisbenzimidazolium bromide salts (L1, L2, and L3) were synthesized and fully characterized. Reactions of palladium acetate with L1, L2, and L3 afforded corresponding new bridgedbis(N‐heterocyclic carbene)palladium(II) complexes (C1, C2, and C3) in high yields. The X‐ray structure of complex C1 showed that the Pd(II) ion is bonded to the two carbon atoms of the bis(N‐heterocyclic
Efficient N-heterocyclic carbene palladium(II) catalysts for carbonylative Suzuki-Miyaura coupling reactions leading to aryl ketones and diketones
作者:Mansur Ibrahim、Imran Malik、Waseem Mansour、Muhammad Sharif、Mohammed Fettouhi、Bassam El Ali
DOI:10.1016/j.jorganchem.2018.01.028
日期:2018.3
N′-substituted imidazoliumsalts (L1 and L2) and their corresponding diiodopyridinepalladium(II) complexes (C1 and C2) were successfully synthesized and characterized. Reactions of palladium iodide with the newly synthesized N, N′-substituted imidazolium iodides in pyridine afforded the corresponding new palladium-N-heterocyclic carbene pyridine complexes in high yields. The new palladium(II) complex C1 was
Synthesis and palladium(II) metal chemistry of thiazoline/imidazoline derived ligands: An efficient catalyst for cross-coupling reactions of arylboronic acids with acid chlorides and aryl halides
作者:Murugesan Sudharsan、D. Suresh
DOI:10.1016/j.ica.2018.09.012
日期:2018.11
ine (2) and 2-(4,5-dihydro-1H-imidazol-2-yl)aniline (3) are reported. The reactions of 2 with [Pd(COD)Cl2] in 1:1 and 1:2 (ligand into metal and metal into ligand) molar ratios afforded the mononuclear complexes, PdCl2κ2−N,S − 2−(4,5-dihydrothiazol-2-yl)aniline} (4), Pdκ2−N,N’−2−(4,5-dihydrothiazol-2-yl)aniline}2 (5) and Pdκ12−N,N’−κ22−N,S − 2−(4,5-dihydrothiazol-2-yl)aniline}2 (6), respectively
The use of 1,4-phenylene-containing tripyrrane analogs provides a general route to expanded p-benziporphyrins. The course of macrocyclization shows a striking dependence on the steric bulk of meso substituents.