Helvetica chimica acta

Efficient Synthesis of 1, 2??Bis (2, 2′??bipyridinyl) ethane and 1, 2??bis (1, 10??phenanthrolinyl) ethane ligands by oxidative coupling of the corresponding monomeric …

JM Lehn, R Ziessel

Index: Lehn, Jean-Marie; Ziessel, Raymond Helvetica Chimica Acta, 1988 , vol. 71, p. 1511 - 1516

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Citation Number: 42

Abstract

Abstract Several dimeric 1, 2-bis (2, 2′-bipyridinyl) ethane (1, 2, 6, 7, and 9 and 1, 2-bis (1, 10-phenanthrolinyl)) ethane (3, 4, and 5) ligands have been synthesized in high yield by oxidative coupling of the corresponding monomeric methylene carbanions using as oxidating agents Br 2, I 2, and 1, 2-dibromoethane. The structure of the compounds obtained from three tetramethyl-2, 2′-bipyridines and one tetramethyl-1, 10-phenanthroline have ...