Reaction of N-arylcarbamoyl-1,4-benzoquinone imines with sodium arenesulfinates
摘要:
N-Arylcarbamoyl-1,4-benzoquinone imines possessing at least one free ortho position with respect to the carbonyl carbon atom in the quinoid ring react with sodium arenesulfinates according to the nucleophilic 1,4-addition pattern with complete regioselectivity. If both ortho positions are occupied, the reaction gives a mixture of products where the major ones are 1,6- and 6,1-adducts formed according to the radical ion mechanism.
Synthesis and structure of N-alkyl(aryl)aminocarbonyl-1,4-benzoquinone imines
摘要:
New N-alkyl(aryl)aminocarbonyl-1,4-benzoquinone imines were synthesized by reaction of isocyanates with the corresponding substituted 4-aminophenols, and their structure was determined on the basis of H-1 and C-13 NMR spectra and X-ray diffraction data.