
%0 Journal Article
%A Hamon, DPG 
%A Lewis, GE 
%A Mayfield, RJ 
%T Photochemical reactions of azo compounds. XV. <I>Ortho/para</I> substitution ratios in the photoinduced reactions of <I>trans</I>-azobenzene with acid chlorides
%J Australian Journal of Chemistry
%D 1968/04/01
%V 21
%N 4
%P 1053-1059
%K 
%R https://doi.org/10.1071/CH9681053
%U https://www.publish.csiro.au/paper/CH9681053 
%X Irradiation of trans-azobenzene in acetyl chloride, and subsequent hydrolysis-oxidation of the photo product, has been shown to yield a small amount of 2-chloroazo-benzene in addition to 4-chloroazobenzene (main product). Analogous reaction sequences, starting with different acid chlorides, show marked variations in ortho/para substitution ratios; and correlations indicate that the relative extents of ortho and para substitution are associated with the ionizability of the acid chlorides. 
