Pt(0)-Catalyzed Alkynylation of Aryl Iodides with Lithium Alkynyltriisopropoxy Borates

Chang Ho Oh; V. Raghava Reddy

doi:10.1055/s-2004-832819

LETTER

Pt(0)-Catalyzed Alkynylation of Aryl Iodides with Lithium Alkynyltriisopropoxy Borates

Chang Ho Oh*, V. Raghava Reddy
Department of Chemistry, Hanyang University, Sungdong-Gu, Seoul 133-791, Korea
Fax: +82(2)22990732; e-Mail: changho@hanyang.ac.kr;

Abstract

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Abstract

An efficient cross coupling reaction of various lithium alkynyltriiospropoxyborates with a wide array of aryl iodides was catalyzed by Pt(PPh₃)₄-CuI in DMF as a solvent. These cross coupling reactions are general and permit the new sp-sp² carbon-carbon bond formation.

Key words

alkynylation - lithium alkynylborate - Pt-catalyst - Suzuki-Miyaura coupling

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