... Manchester M13 9PL, UK. John Herbert. Sterling Winthrop Research Centre Alnwick Northumberland, UK. Received 10 January 1994, Revised 15 March 1994, Accepted 29 March 1994, Available online 15 March 2001. Abstract. ... References. 1; JD King, P. Quayle; Tetrahedron Letters, 32 (1991), p. 7759. ... 8; (a1) L. Lattuada, E. Licandro, S. Maiorana, H. Molinari, A. Papagini; For previous routes to this class of compounds see Organometallics, 10 (1991), p. 807. ...