Pd−Catalyzed Domino Alkyne Dimerization/Double [2+2] Allenyne Cycloaddition

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13th Int. Electron. Conf. Synth. Org. Chem. 2009, a005:1-5

Communication

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Pd−Catalyzed Domino Alkyne Dimerization/Double [2+2] Allenyne Cycloaddition

Benito Alcaide ^a

, Pedro Almendros ^b

, Cristina Aragoncillo ^a

and Gonzalo Gómez- Campillos ^a

a Departamento de Química Orgánica I, Facultad de Química.Universidad Complutense de Madrid, 28040 Madrid, Spain; b Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas, CSIC. Juan de la Cierva 3, 28006 Madrid, Spain;

(This article belongs to the section A. General Organic Synthesis)

Cite this paper as: Alcaide, B.; Almendros, P.; Aragoncillo, C.; Gómez- Campillos, G. Pd−Catalyzed Domino Alkyne Dimerization/Double [2+2] Allenyne Cycloaddition. In Proceedings of the 13th Int. Electron. Conf. Synth. Org. Chem., 1-30 November 2009; Sciforum Electronic Conferences Series, 2009, a005:1-5.

Abstract: An efficient and controlled Pd−catalyzed synthesis of attached-ring bis(dihydropyran) fused cyclobutenes via alkyne dimerization followed by double [2+2] cyclization of the resulting bis(allenyne) in a domino sequence has been accomplished.

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