Decyl(Tri-Tert-Butyl)Phosphonium Tetrafluoroborate/Palladium Acetate: An Effective Catalyst for Cross-Coupling Reaction of Arylbromides with Phenylacetylene in Copper-Free Conditions

Vadim Ermolaev Institute of Organic and Physical Chemistry A. E. Arbuzov, A. Arbuzov Str. 8, Kazan, Russia

Vasiliy Miluykov Institute of Organic and Physical Chemistry A. E. Arbuzov, A. Arbuzov Str. 8, Kazan, Russia

Daria Arkhipova Institute of Organic and Physical Chemistry A. E. Arbuzov, A. Arbuzov Str. 8, Kazan, Russia

Elena Zvereva Institute of Organic and Physical Chemistry A. E. Arbuzov, A. Arbuzov Str. 8, Kazan, Russia

Oleg Sinyashin Institute of Organic and Physical Chemistry A. E. Arbuzov, A. Arbuzov Str. 8, Kazan, Russia

Abstract

The phosphonium salts with sterically hindered cation and noncoordinating anion can be used as phase-transfer reagent in the Sonogashira cross-coupling reaction allowing copper- and amine-free protocol. The reactions proceed under mild conditions with good yields.

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Acknowledgments

The authors would like to acknowledge FASIE (r/16815) and IVF RT for financial support.

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Decyl(Tri-Tert-Butyl)Phosphonium Tetrafluoroborate/Palladium Acetate: An Effective Catalyst for Cross-Coupling Reaction of Arylbromides with Phenylacetylene in Copper-Free Conditions

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Decyl(Tri-Tert-Butyl)Phosphonium Tetrafluoroborate/Palladium Acetate: An Effective Catalyst for Cross-Coupling Reaction of Arylbromides with Phenylacetylene in Copper-Free Conditions

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