Synthesis of the naturally occurring naphtho-z. sfnc; 2, 3-bz. sfnc; pyran-5, 10-quinones α-caryopterone, dihydro-α-caryopterone and their isomers 6-hydroxy-dehydro- …
Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Isomeric 6- and 9-hydroxy-naphtho-z.sfnc;2,3-bz.sfnc;pyran-5,10-quinones were synthesised by alkylation-cyclisation of 2- and 3-hydroxyjuglone in a single step and can be distinguished by UV-visible spectra in the presence of additives and 1 HNMR. ... The title compounds ...