Expanded ring diaminocarbene palladium complexes: synthesis, structure, and Suzuki–Miyaura cross-coupling of heteroaryl chlorides in water
作者:Eugene L. Kolychev、Andrey F. Asachenko、Pavel B. Dzhevakov、Alexander A. Bush、Viacheslav V. Shuntikov、Victor N. Khrustalev、Mikhail S. Nechaev
DOI:10.1039/c3dt32860k
日期:——
and characterized structurally in the solid state. The influence of ring size (5, 6 or 7) and bulkiness of N-aryl substituents (Mes = 2,4,6-trimethylphenyl, or Dipp = 2,6-diisopropylphenyl) in carbenes on palladium catalysed Suzuki–Miyaura cross-coupling was revealed. Due to the unique stereoelectronic properties of expanded ring NHCs, a versatile, highly efficient green protocol of coupling of heteroaromatic