Guangdong University of Technology 2 articles published in JoVE Chemistry Chemoselective Preparation of 1-Iodoalkynes, 1,2-Diiodoalkenes, and 1,1,2-Triiodoalkenes Based on the Oxidative Iodination of Terminal Alkynes Youzhi Li*1, Daya Huang*1, Ju Huang1, Yan Liu1, Keiji Maruoka1,2 1School of Chemical Engineering and Light Industry, Guangdong University of Technology, 2Department of Chemistry, Graduate School of Science, Kyoto University Herein, detailed protocols for the oxidative iodination of terminal alkynes using hypervalent-iodine reagents are presented, which chemoselectively afford 1-iodoalkynes, 1,2-diiodoalkenes, and 1,1,2-triiodoalkenes. Chemistry Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework Yonghe He1, Jiahong Huang1, Jun He1, Zhengtao Xu2 1School of Chemical Engineering and Light Industry, Guangdong University of Technology, 2Department of Chemistry, City University of Hong Kong Here, we present a one-pot, transition-metal-free synthesis of thiols and thioesters from aromatic halides and sodium thiomethoxide, followed by the preparation of single crystals of a metal-dithiolene network using thiol species generated in situ from the more stable and tractable thioester.