Synthesis of terminal allenes via a copper-catalyzed decarboxylative coupling reaction was developed. Aryl alkynyl carboxylic acid, paraformaldehyde, and dicyclohexylamine were reacted with CuI (20 ...

Grand ceremony held to worship legendary ancestor Huangdi in China's Henan A ceremony to worship Huangdi, a legendary common ancestor of the Chinese people, is held in Xinzheng City, central China's ...