NMR STUDIES OF URUSHIOL OF CHINA URUSHI

In a previous paper, the authors have reported structures of the saturated urushiol, the monoene urushiol, the lone-diene urushiol and the conjugated-triene urushiol existing in China urushi. Corbett and Billets have studied the properties of the urushiol of the poisonous oak by separating the compounds of the olefin of the urushiol by the thin layer method, and then determined their structures by spectral analysis. Huang and Liu