Asymmetric Permanganate-Promoted Oxidative Cyclization of 1,5-Dienes by Using Chiral Phase-Transfer Catalysis This work was supported by the EPSRC (J.F.K.) and the Royal Society (R.C.D.B.). We thank Dr. Barry Lygo (University of Nottingham) for helpful discussions, and Syngenta and Merck Sharp and Dohme for unrestricted grants
Angew Chem Int Ed Engl. 2001 Dec 3;40(23):4496-4498.
doi: 10.1002/1521-3773(20011203)40:23<4496::aid-anie4496>3.0.co;2-f.