A concise modular synthesis of 2, 5-diethynyl-3, 4-dibutyl-thiophene-bridged back-to-back terpyridine ligands

C Ringenbach, A De Nicola…

Index: Ringenbach, Celine; De Nicola, Antoinette; Ziessel, Raymond Journal of Organic Chemistry, 2003 , vol. 68, # 12 p. 4708 - 4719

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Citation Number: 51

Abstract

The efficient synthesis of soluble and rigid terpyridine-based ditopic ligands bearing an increasing number of 2, 5-diethynyl-3, 4-dibutylthiophene (DEDBT) modules has demonstrated the advantages of a single convergent strategy based on a double coupling in a final step of monoterpyridine building blocks carrying the adequate number of thiophene modules with a diiodo-substituted thiophene subunit. This protocol enjoys the advantages ...