Dioxazolones as masked ester surrogates in the Pd(<scp>ii</scp>)-catalyzed direct C–H arylation of 6,5-fused heterocycles
作者:Paridhi Saxena、Neha Maida、Manmohan Kapur
DOI:10.1039/c9cc05563k
日期:——
simple and effective Pd(II)-catalyzed regioselective C(2)–H arylation of 6,5-fused heterocycles with dioxazolones as a masked ester surrogate under mild conditions is reported. The significance of the arylation is highlighted by the new reactivity demonstrated in dioxazolones via proximal C–H activation of the cyclic carbonate of the hydroxamic acid functionality under protic conditions.
据报道,在温和的条件下,一种简单有效的Pd(II)催化6,5-稠合杂环与二恶唑酮作为掩蔽酯替代物的区域选择性C(2)–H芳基化反应。通过在质子条件下通过近端C–H活化异羟肟酸官能团的环状碳酸酯在二恶唑酮中显示出新的反应性,突出了芳基化的重要性。