铑催化四芳基二炔原位生成菲环丁二烯及其与环烯二酮和四氯苯醌的环加成反应。
Rh-Catalyzed in Situ Generation of Phenanthrocyclobutadienes from Tetraaryl-Diynes and Their Cycloadditions with Cycloalkenediones and -Chloranil.
作者信息
Minami Yuya, Innami Shurika, Sato Yu, Shibahara Kaito, Aida Yukimasa, Tanaka Ken
机构信息
Department of Chemical Science and Engineering, Institute of Science Tokyo, Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
出版信息
Org Lett. 2025 Jun 20;27(24):6502-6507. doi: 10.1021/acs.orglett.5c01903. Epub 2025 Jun 9.
We have developed a method for the catalytic in situ generation of Rh(I)-phenanthrocyclobutadiene complexes from a cationic Rh(I)/Segphos complex and tetraaryl-diynes. These complexes can undergo cycloaddition reactions with cycloalkenediones and -chloranil, giving different dicarbonyl compounds. In these cycloaddition reactions, dioxygen may facilitate the reductive elimination of rhodacyclopentadienes to Rh(I)-phenanthrocyclobutadiene complexes.
我们已经开发出一种方法，可从阳离子Rh(I)/Segphos配合物和四芳基二炔原位催化生成Rh(I)-菲环丁二烯配合物。这些配合物能与环烯二酮和四氯苯醌发生环加成反应，生成不同的二羰基化合物。在这些环加成反应中，氧气可能有助于将铑环戊二烯还原消除为Rh(I)-菲环丁二烯配合物。
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