In a modified procedure, the reactions of benzofurazan oxide (8 ) with specific ketones, in the presence of pyrrolydine, were found to be faster and to afford higher yields of the corresponding alkyl substituted quinoxaline ...
2,3-Naphthalene dialdehyde (see text for structure 115), 2,3-dibensoylanthracene (36) were prepared and used as starting materials in the preparation of some isoindoles. It was found that the literature method for the ...