
%0 Journal Article
%A Rideout, JA 
%A Smith, IR 
%A Sutherland, MD 
%T Pigments of marine animals. XII. The synthesis of certain substituted naphthopyrones related to crinoid pigments
%J Australian Journal of Chemistry
%D 1976/05/01
%V 29
%N 5
%P 1087-1098
%K 
%R https://doi.org/10.1071/CH9761087
%U https://www.publish.csiro.au/paper/CH9761087 
%X Syntheses of 5,6,8-trimethoxy-2-propyl-4H-naphtho[2,3-b]pyran-4-one, 5,6,8,10-tetramethoxy-2-propyl-4H-naphtho[2,3-b]pyran-4-one, 5,8,10-trimethoxy-2-propyl-4H-naphtho[l,2-b]pyran-4-one and 5,6,8,10-tetramethoxy-2-propyl-4H-naphtho[l,2-b]pyran-4-one are described. The products confirm the structures assigned previously to the crinoid pigments neocomantherin, comaparvin, 6-methoxycomaparvinand 6-methoxycomaparvin 5-methyl ether. 
