Regiodivergent Halogenation of Vinylogous Esters: One-Pot, Transition-Metal-Free Access to Differentiated Haloresorcinols
作者:Xiaohong Chen、Jenny S. Martinez、Justin T. Mohr
DOI:10.1021/ol503561x
日期:2015.1.16
vinylogous esters and sulfonyl halide halogen donors. Either the 4- or 6-haloresorcinol isomer is accessible from a common precursor. In contrast to conventional oxidants for arene halogenation, mild sulfonyl halides allow broad functional group compatibility. The strategy inherently differentiates the two resorcinol oxygen atoms and enhances the potential for complex molecule synthesis.
我们报告了一种高效的方法,用于使用容易获得的乙烯基酯和磺酰卤卤素供体进行卤代间苯二酚衍生物的区域发散合成。4-或6-卤代间苯二酚异构体可从常见的前体获得。与用于芳烃卤化的常规氧化剂相比,温和的磺酰卤具有广泛的官能团相容性。该策略固有地区分了两个间苯二酚氧原子,并增强了复杂分子合成的潜力。