作者:Amanda S. Santana、Diego B. Carvalho、Nadla S. Cassemiro、Luiz H. Viana、Gabriela R. Hurtado、Marcos S. Amaral、Najla M. Kassab、Palimécio G. Guerrero、Sandro L. Barbosa、Miguel J. Dabdoub、Adriano C.M. Baroni
DOI:10.1016/j.tetlet.2013.10.118
日期:2014.1
A simple synthesis of 3-iodothiophenes was demonstrated using a wide range of (Z)-thioenynes. The key step in the iodocyclofunctionalization was the selective reduction of the triple bond in (Z)-thioenynes by the addition of iodine as an electrophilic agent. The 3-iodothiophenes were obtained in good to excellent yields of 61-92%. The 3-iodothiophenes were used as substrates in Sonogashira cross-coupling reactions to obtain thiophene acetylenes. (C) 2013 Elsevier Ltd. All rights reserved.