2-Furyl ketones are important synthetic precursors and are present in many natural products. [ 1 1. (a) Thomas , AF The synthesis of monoterpenoids ; In Total Synthesis of Natural Products ; J. Ap-Simon (Ed.); John Wiley & Sons : New York , 1973 ; vol. 2 , p. 159 ; (b) Hargreaves , JA ; Mansfield , JW ; Coxon , DT ; Price , KR Wyerone epoxide as a phytoalexin in Vicia faba and its metabolism by Botrytis cinerea and B. fabae in vitro. Phytochemistry 1976, 15, 1119 ; ...