Rate coefficients of the reactions of OH and Cl radicals with vinyl and allyl butyrate were determined for the first time at 298 K and 1 atm using the relative method to be (in cm(3) molecule (1) s (1)): k(1)(OH + CH2= CHC(O)O(CH2)(2)CH3) = (2.61 +/- 0.31) x 10 (11), k(2)(Cl + CH2=CHC(O)O(CH2)(2)CH3)= (2.48 0.89) x 10 (10), k(3)(OH + CH2=CHCH2C(O)O(CH2)(2)CH3) = (2.89 0.31) x 10 (11), and k(4)(Cl + CH2=CHCH2C(O)O(CH2)(2)CH3) (2.25 0.96) x 10 (10). Reactivity trends and atmospheric lifetimes of esters are presented. Additionally, a product study shown butyric acid and polifunctional products for the reactions of vinyl and allyl butyrate, respectively and general mechanism is proposed. (C) 2016 Elsevier B.V. All rights reserved.