Kinetic peculiarities of alpha-pinene liquid-phase oxidation by molecular oxygen were studied (in a temperature range of 343-393 K and at oxygen pressure within 0.5-6 bar range). The process proceeds selectively at a low alpha-pinene conversion and the main products are verbenyl-hydroperoxide and alpha-pinene epoxide. The products ratio depends slightly on temperature, oxygen pressure and alpha-pinene conversion. The kinetic equation for the reaction rate was suggested. (C) 2004 Elsevier B.V. All rights reserved.