A synthesis of (15: 1)-urushiol, urushiol monoene, 3-[(Z)-pentadec-8-enyl] catechol, 1, 2- dihydroxy-3-[(Z)-pentadec-8-enyl] benzene, one of the toxic principles of Rhus toxicodendron and of Rhus vernicifera is described. 6-Chlorohexan-1-ol protected at the OH group with ethyl vinyl ether reacted with 2, 3-dimethoxybenzaldehyde in the presence of lithium to give, after removal of the protective group with methanolic 4-toluenesulphonic ...
[Kessar, Satinder V.; Gupta, Yash P.; Mohammad, Taj; Goyal, Manju; Sawal, Kewal K. Journal of the Chemical Society, Chemical Communications, 1983 , # 7 p. 400 - 401]