MARKEES, D. G., HELV. CHIM. ACTA, 1983, 66, N 2, 620-626
作者:MARKEES, D. G.
DOI:——
日期:——
The Synthesis of Some 1, 8-Phenanthrolines and Related Compounds
作者:Diether G. Markees
DOI:10.1002/hlca.19830660223
日期:1983.3.16
The synthesis of ethyl 4-oxo-1, 4-dihydro-1, 8-phenanthroline-3-carboxylate (2a) and some other 1, 8-phenanthrolines is reported. The ethylation of the above ester yields a thermochromic product 2b and some ethyl 4-ethoxy-1, 8-phenanthroline-3-carboxylate (3b). Reexamination of similar ethylations of analogous esters derived from 1, 7-phenanthroline and 1, 10-phenanthroline indicated formation of the