作者:Ryan Dol、Srini Vemulapalli、Oyin Azeez、Travis Dudding
DOI:10.1016/j.tet.2023.133704
日期:2023.11
report an efficient catalytic, one-pot, synthesis of sydnone heterocycles from readily available α-amino acid derivatives using inexpensive N,N′-dimethylformamide as a precatalyst and oxalyl chloride as a stoichiometric oxidant. This operationally simple procedure benefits from mild conditions and short reaction times as showcased by the synthesis of various substituted sydnone heterocycles in good yields
我们报道了使用廉价的N , N'-二甲基甲酰胺作为预催化剂和草酰氯作为化学计量氧化剂,从容易获得的α -氨基酸衍生物中高效催化一锅合成苯乙烯杂环。这种操作简单的程序受益于温和的条件和短的反应时间,如以良好的收率和高达克规模的各种取代的苯乙烯杂环的合成所证明的那样。为了深入了解这种反应性,密度泛函理论研究被报道。总的来说,这项工作记录了一种制备具有历史和现代重要性的苯乙烯杂环的有效催化策略。