Page 1. 308 PC naas et al. Two-step synthesis of a sex attractant of the male Boll Weevil from isophorone Two-step synthesis of a sex attractant of the male Boll Weevil from isophorone PC Traas, H. Boelens and HJ Takken ... 1 4a 4b 4c Scheme 3 Is PC Traas and H. Boelens, Recl Trav. Chim Pays-Bas !& 985 lb P. C. Traas, H. Boelens and H . J . Takken, Recl. Trav. Chim " Z . Arnold and J. Zemlicka, Proc Chem SOC 195s, 227. ...