A directing group free Pd(<scp>ii</scp>)-catalysed desulfitative C6-arylation of 2-pyridone using an arylsulfonyl chloride
作者:Ujjwal Karmakar、Rajarshi Samanta
DOI:10.1039/d0ob01716g
日期:——
A Pd(II)-catalysed directdesulfitativearylation was realized at the C6-position of the 2-pyridone scaffold. Aryl sulfonyl chloride was used as an alternative arylating agent. The required site-selectivity occurred without the strategic installation of a heteroatom containing directing group. Preliminary mechanistic studies revealed that radical species were involved during this process.
在 2-吡啶酮支架的 C6 位实现了Pd( II ) 催化的直接脱硫芳基化。芳基磺酰氯用作替代的芳基化剂。在没有战略性地安装含杂原子的导向基团的情况下,就可以实现所需的位点选择性。初步机制研究表明,在此过程中涉及自由基物种。