Research Project
Grant-in-Aid for Scientific Research (C)
We found that an allylic hydroxy group can activate the adjacent olefin in Ru-alkylidene catalyzed enyne metathesis. The substituent effect could be switched ON/OFF by protection or non-protection of the hydroxy group. By using the switching of the substituent effect, direction control of tandem enyne metathesis of dienynes has been accomplished. The generality of the direction-controlled tandem enyne metathesis was proven by applying to various enyne compounds. Since mechanistic studies suggested that the activation effect of an allylic hydroxy group arises from hydrogen-bonding interaction between the substrate and catalyst, direction control of the tandem enyne metathesis by regulating the hydrogen-bonding interaction was investigated. In this stage, the distinct direction control has not been accomplished completely, but the possibility was shown.
All 2014 2013 2012 2011 Other
All Journal Article (10 results) (of which Peer Reviewed: 2 results) Presentation (19 results) (of which Invited: 4 results)
Chem. Lett
Volume: 42 Pages: 1134-1136
Tetrahedron Lett
Volume: 54 Pages: 7107-7110
Enyne Metathesis Heterocycles
Volume: 84 Pages: 929-944
Org. Lett
Volume: 14 Pages: 1172-1175
Chem.-Eur. J
Volume: 18 Pages: 10802-10807
J. Med. Chem
Volume: 55 Pages: 10347-10362
Chem. Eur. J.
Volume: 18 Issue: 35 Pages: 10802-10807
10.1002/chem.201201383
J. Med. Chem.
Volume: 55 (23) Issue: 23 Pages: 10347-10362
10.1021/jm301304e
Med. Chem. Lett
Volume: 21 Pages: 738-741
Volume: 40 Pages: 1343-1345