Description

An alkynyl substrate that is used with ?-diazoesters in a copper-catalyzed synthesis of pyrazoles.
5-Chloro-1-pentyne was used in the synthesis of 5-chloro-2-trimethylstannyl-1-pentene by reacting with Me3SnCu.Me2S.It was also used with ?-diazoesters in a copper-catalyzed synthesis of pyrazoles.