A Click Chemistry Approach to 5,5′-Disubstituted-3,3′-Bisisoxazoles from Dichloroglyoxime and Alkynes: Luminescent Organometallic Iridium and Rhenium Bisisoxazole Complexes
摘要:
5,5'-Disubstituted-3,3'-bisisoxazoles are prepared in one step by the dropwise addition of aqueous potassium hydrogen carbonate to a mixture of dichloroglyoxime and terminal alkynes. The reaction exhibits a striking preference for the 5,5'-disubstituted 3,3'-bisisoxazole over the 4,5'-regioisomer. Organometallic iridium and rhenium bisisoxazole complexes are luminescent with emission wavelengths varying depending upon the identity of the 5,5'-substituent (phenyl, butyl).
A Click Chemistry Approach to 5,5′-Disubstituted-3,3′-Bisisoxazoles from Dichloroglyoxime and Alkynes: Luminescent Organometallic Iridium and Rhenium Bisisoxazole Complexes
作者:Phillip L. van der Peet、Timothy U. Connell、Christian Gunawan、Jonathan M. White、Paul S. Donnelly、Spencer J. Williams
DOI:10.1021/jo4008755
日期:2013.7.19
5,5'-Disubstituted-3,3'-bisisoxazoles are prepared in one step by the dropwise addition of aqueous potassium hydrogen carbonate to a mixture of dichloroglyoxime and terminal alkynes. The reaction exhibits a striking preference for the 5,5'-disubstituted 3,3'-bisisoxazole over the 4,5'-regioisomer. Organometallic iridium and rhenium bisisoxazole complexes are luminescent with emission wavelengths varying depending upon the identity of the 5,5'-substituent (phenyl, butyl).