Ruthenium-catalyzed Regioselective Synthesis of Dienol Diesters

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Ahmed Kabouche, Zahia Kabouche, Christian Bruneau and Pierre Henri Dixneuf


Abstract

(Geminal, geminal) dienol diesters are obtained in one step by direct addition of carboxylic acids to terminal diynes in the presence of ruthenium catalysts such as RuCl2(PR3)(arene) or [Ru(µ-O2CH)(CO)2(PR3)]2 while the catalyst [PPh2(CH2)4PPh2]Ru[η3-CH2=C(Me)CH2]2 favours the formation of regioselective (Z,Z) dienol diesters.


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