Institute of Engineering Innovation, School of Engineering, The University of Tokyo, Yayoi, Bunkyo‐ku, Tokyo, 113‐8656 (Japan), Fax: (+81)3‐5841‐1175 http://park.itc.u‐tokyo.ac.jp/nishiba/
Abstract:
Another way to dienes : The ruthenium‐catalyzed 6‐endo‐cycloisomerization of 1,5‐enynes gives the corresponding 1,3‐cyclohexadienes in high to excellent yields. This novel synthetic and catalytic method constitutes another way to selectively prepare 1,3‐cyclohexadienes, this cyclic diene skeleton being a core subunit in many natural products and a useful building block for a variety of organic transformations.
