1, 3??Bicyclo [1.1. 1] pentanediyl: The Shortest Rigid Linear Connector of Phenylated Photochromic Units and a 1, 5??Dimethoxy??9, 10??di (phenylethynyl) anthracene …

A de Meijere, L Zhao, VN Belov, M Bossi…

Index: De Meijere, Armin; Ligang, Zhao; Belov, Vladimir N.; Bossi, Mariano; Noltemeyer, Matthias; Hell, Stefan W. Chemistry - A European Journal, 2007 , vol. 13, # 9 p. 2503 - 2516

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Citation Number: 42

Abstract

Abstract An excess of bis-1, 3-(4-iodophenyl) bicyclo [1.1. 1] pentane, prepared in 63% yield by iodination of 1, 3-diphenylbicyclo [1.1. 1] pentane, was selectively mono-coupled with 9- ethynyl-1, 5-dimethoxy-10-phenylethynylanthracene (26), and subsequently with the zinc derivatives of 1-(2-methyl/methoxy-4-methyl-5-phenylthiophen-3-yl)-2-(2-methyl/methoxy-4- methylthiophen-3-yl) perfluorocyclopentenes (38-H–41-H). Regioselective synthesis of ...