作者:V. O. Koz'minykh、O. A. Sof'ina、N. M. Igidov、E. N. Koz'minykh
DOI:10.1023/a:1013884909709
日期:——
1,6-Disubstituted 3,4-dihydroxy-2,4-hexadiene-1,6-diones having two contiguous beta-dicarbonyl fragments readily react with 2,3-diaminopyridine to give (2Z,3Z)-bis(acylmethylene)-1,2,3,4-tetrahydropyrido[2,3-b]pyrazines.