Author/Authors :
M. Zaharia-Arnautu، نويسنده , , Anca and Collot، نويسنده , , Valérie and Ros، نويسنده , , Javier Calvo and Alayrac، نويسنده , , Carole and Witulski، نويسنده , , Bernhard and Rault، نويسنده , , Sylvain، نويسنده ,
Abstract :
This paper describes a Sonogashira-type cross-coupling reaction of 3-iodoindazoles with various terminal alkynes as a general route to 3-alkynylindazoles. The coupling reaction is illustrated by the preparation of new indazolylpropiolic or propargylic derivatives. Scope and limitation of the method are outlined.