Highly Regioselective Palladium-Catalyzed Annulation Reactions of Heteroatom-Substituted Allenes for Synthesis of Condensed Heterocycles
作者:Kiyofumi Inamoto、Akio Yamamoto、Kazutoshi Ohsawa、Kou Hiroya、Takao Sakamoto
DOI:10.1248/cpb.53.1502
日期:——
We have developed a highly regioselective synthesis of heterocycles via palladium-catalyzed annulation reaction of heteroatom-substituted allenes. Various aryl halides were reacted and one regioisomer was observed exclusively in all reactions. In addition, subsequent functionalizations of annulated products were carried out using alkyl metal reagents, and the introduction of alkyl moieties was accomplished
我们已经开发了通过钯催化的杂原子取代的烯基环氧化反应的杂环的高度区域选择性合成。各种芳基卤化物反应,仅在所有反应中观察到一种区域异构体。另外,随后使用烷基金属试剂对环状产物进行官能化,并完成了烷基部分的引入。