The new and simple ‘LEGO’ system: Synthesis and reactions of thienyl-substituted 4-tributylstannyl-2,6-oligopyridines
作者:Gunther R. Pabst、Oliver C. Pfüller、Jürgen Sauer
DOI:10.1016/s0040-4020(99)00178-7
日期:1999.4
3,5-Disubstituted 1,2,4-triazines 3 are converted regioselectively to 4-tributylstannyl-2,6-oligopyridines 4 via [4+2] cycloadditions with ethynyltributyltin. These tin compounds 4 are coupled with aryl bromides and aryloyl chlorides in palladium catalyzed reactions to 4-aryl-2,6-oligopyridines and 4-aryloyl-2,6-oligopyridines 6. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.