作者:Santosh K. Sahoo、Latonglila Jamir、Srimanta Guin、Bhisma K. Patel
DOI:10.1002/adsc.201000383
日期:2010.10.4
We have developed a ligand-assisted copper(I)-catalyzed two sequential heteroarylation sequence. An intramolecular S-arylation is followed by an intermolecular N-arylation leading to the direct synthesis of N-aryl-2-aminobenzothiazoles. In most cases however, the 2-arylsulfanyl-arylcyanamide was the major product obtained via an intramolecular CS bond formation, associated with CS bond breakage, followed
我们已经开发了配体辅助的铜(I)催化的两个顺序的杂芳基化序列。分子内小号-arylation随后通过分子间Ñ -arylation导致的直接合成Ñ -芳基-2-氨基苯并。然而,在大多数情况下,2-芳基硫烷基-芳基氰酰胺是通过分子内CS键形成,与CS键断裂相关,随后是分子间S键获得的主要产物。-芳基化。与不含配体的反应相比,该配体辅助的反应的选择性有很大不同,并且速率要快得多,从而提供了良好的产物收率。在有或没有配体的协助下,在催化量的铜(I)的辅助下,可以由它们相应的1-取代的硫脲以优异的产率制备各种氰酰胺。