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The Synthesis of Some 1, 8-Phenanthrolines and Related Compounds

✍ Scribed by Diether G. Markees

Publisher
John Wiley and Sons
Year
1983
Tongue
German
Weight
353 KB
Volume
66
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

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 O‐ethyl derivative of the former and the N‐ethyl derivative of the latter.

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