3-Iodoselenophene derivatives: a versatile substrate for Negishi cross-coupling reaction
作者:Ricardo F. Schumacher、Diego Alves、Ricardo Brandão、Cristina W. Nogueira、Gilson Zeni
DOI:10.1016/j.tetlet.2007.11.070
日期:2008.1
3-Iodoselenophene derivatives undergo a direct Negishi cross-coupling reaction with several organozinc compounds in the presence of a catalytic amount of Pd(PPh3)4 in THF at roomtemperature. This cross-coupling reaction proceeded cleanly under mild conditions and permitted the formation of polyaromatic compounds in good yields.
The Suzuki cross-coupling of 3-iodoselenophenes with boronicacids in the presence of catalytic amount of palladium salt is described. This cross-couplingreaction proceeded cleanly under mild conditions and was performed with aryl boronicacids bearing electron-withdrawing, electron-donating, and neutral substituents, furnishing the correspondents products in moderate to good yields.