作者:Anju Nalikezhathu、Adriane Tam、Valeriy Cherepakhin、Van K. Do、Travis J. Williams
DOI:10.1021/acs.orglett.3c00468
日期:2023.3.17
4-diazacycles by diol–diamine coupling, uniquely made possible with a (pyridyl)phosphine-ligated ruthenium(II) catalyst (1). The reactions can exploit either two sequential N-alkylations or an intermediate tautomerization pathway to yield piperazines and diazepanes; diazepanes are generally inaccessible by catalytic routes. Our conditions tolerate different amines and alcohols that are relevant to key
我们报告了通过二醇-二胺偶联合成 1,4-二氮杂环,这种偶联是通过(吡啶基)膦连接的钌 (II) 催化剂 ( 1 ) 独特实现的。这些反应可以利用两个连续的N-烷基化或中间互变异构化途径来产生哌嗪和二氮杂环庚烷;二氮杂环己烷通常无法通过催化途径获得。我们的条件容忍与关键药物平台相关的不同胺和醇。我们展示了药物 cyclizine 和 homochlorcyclizine 的合成,产率分别为 91% 和 67%。