Determination of the activation parameters and the mechanism for atropisomerization of (S)-3-(2-chlorophenyl)-2-[2-(6-diethylaminomethylpyridin-2-yl)vinyl]-6-fluoroquinazolin-4(3H)-one†
Abstract
Values of ΔH‡ = 111.6 ± 0.3 kJ mol−1 (26.7 ± 0.1 kcal mol−1) and ΔS‡ = −25.7 ± 0.9 J K−1 mol−1 (−6.1 ± 0.2 cal K−1 mol−1) have been determined for the atropisomerization of (S)-3-(2-chlorophenyl)-2-[2-(6-diethylaminomethylpyridin-2-yl)vinyl]-6-fluoroquinazolin-4(3H)-one in