Efficient Method for Preparing Functionalized Benzosuberenes
申请人:Pinney Kevin G.
公开号:US20120130129A1
公开(公告)日:2012-05-24
The disclosed process can efficiently synthesize functionalized benzosuberenes. The process provides an improved method of production of benzosuberene and compounds containing a benzosuberene moiety, which is characterized by a ring closing methodology comprising reaction of a 5-phenylpentanoic acid with Eaton's reagent to form the benzosuberone. The process, optionally, further includes steps for adding a functional group at the ketone position.
Brønsted Acid‐Catalyzed Intramolecular 7‐<i>endo</i> Hydroarylation Reaction of 1,5‐Diaryl‐1‐pentynes
作者:Kosho Makino、Shunsuke Sueki、Masahiro Anada
DOI:10.1002/adsc.202300220
日期:2023.5.12
A Brønstedacid-catalyzed, transition metal-free intramolecular 7-endo hydroarylation reaction of 1,5-diaryl-1-pentynes has been developed. The use of 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) as a solvent was found to be critical for this process. Using the present methodology, we have accomplished the synthesis of KGP-18, an analogue of the anticancer natural product combretastatin A4.