Cyclotrimerization of terminal alkynes catalyzed by the system of NiCl2/Zn and (benzimidazolyl)-6-(1-(arylimino)ethyl)pyridines.
An effective regioselective cyclotrimerization of terminal alkynes is achieved by the direct utilization of NiCl2·6H2O, Zn, and 2-(benzimidazolyl)-6-(1-(arylimino)ethyl)pyridine in one step under ambient temperature.
Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China. cjxi@tsinghua.edu.cn
Chanjuan
C
Xi
Zelin
Z
Sun
Yongbing
Y
Liu
D000480:Alkynes / Q000737:chemistry*; D001555:Benzene Derivatives / Q000138:chemical synthesis* / Q000737:chemistry; D002384:Catalysis; D003500:Cyclization; D015394:Molecular Structure; D009532:Nickel / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*; D013696:Temperature; D015032:Zinc / Q000737:chemistry*
D000480:Alkynes; D001555:Benzene Derivatives; D009942:Organometallic Compounds; D011725:Pyridines; C022838:nickel chloride; D009532:Nickel; D015032:Zinc