
%0 Journal Article
%A Black, DSC 
%A Vanderzalm, CHB 
%A Hartshorn, AJ 
%T Metal template reactions. X. Improved syntheses of 2,2'-(Ethane-1,2-diyldiimino) bisbenzaldehyde and 2,2'-(Propane-1,3-diyl-diimino)bisbenzaldehyde
%J Australian Journal of Chemistry
%D 1977/01/01
%V 30
%N 1
%P 225-229
%K 
%R https://doi.org/10.1071/CH9770225
%U https://www.publish.csiro.au/paper/CH9770225 
%X 2,2'-(Propane-1,3-diyldiimino)bisbenzaldehyde (2) has been synthesized by a high-yielding route involving the alkylation of the isatin anion with 1,3-dibromopropane. 2,2'-(Ethane-1,2-diyldiimino)-bisbenzaldehyde (1) can be synthesized most effectively by a route involving initial acylation of methyl anthranilate with oxalyl chloride. Subsequent reductive and oxidative transformations are then carried out in each case. 
