Modular Synthesis of Diarylalkynes and Their Efficient Conversion into Luminescent Tetraarylbutadienes

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• 作者：Olena Shynkaruk ; Yanyu Qi ; Aiden Cottrell-Callbeck ; William Torres Delgado ; Robert McDonald ; Michael J. Ferguson ; Gang He ; Eric Rivard
• 刊名：Organometallics
• 出版年：2016
• 出版时间：July 11, 2016
• 年：2016
• 卷：35
• 期：13
• 页码：2232-2241
• 全文大小：594K
• 年卷期：0
• ISSN：1520-6041

文摘

A series of electronically distinct symmetrical diarylalkynes were prepared via a general Suzuki–Miyaura cross-coupling protocol. These alkynes underwent zirconium-mediated coupling to yield zirconacycles that afford new tetraaryl-1,3-butadienes upon subsequent protonolysis; these butadienes display deep blue or green emission and represent promising building blocks for light-emitting devices. The presented synthetic pathway allows access to new libraries of molecular light emitters with tunable luminescence and considerable thermal- and photostabilities.