A four-component reaction of aryldiazonium tetrafluoroborates, sulfur dioxide, 1,2-dibromoethane, and hydrazines.
A four-component reaction of aryldiazonium tetrafluoroborates, sulfur dioxide, 1,2-dibromoethane, and hydrazines under metal-free conditions is described, providing a novel and efficient approach to 2-arylsulfonyl hydrazones. This transformation proceeds smoothly via insertion of sulfur dioxide under mild conditions with good functional group tolerance.
Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China. jie_wu@fudan.edu.cn.
Danqing
D
Zheng
Yunyan
Y
Kuang
Jie
J
Wu
D001881:Borates; D001888:Boric Acids / Q000737:chemistry*; D003979:Diazonium Compounds / Q000737:chemistry*; D015946:Ethylene Dibromide / Q000737:chemistry*; D006834:Hydrazines / Q000737:chemistry*; D006835:Hydrazones / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure; D013438:Sulfhydryl Compounds / Q000138:chemical synthesis / Q000737:chemistry; D013458:Sulfur Dioxide / Q000737:chemistry*
D001881:Borates; D001888:Boric Acids; D003979:Diazonium Compounds; D006834:Hydrazines; D006835:Hydrazones; D013438:Sulfhydryl Compounds; D013458:Sulfur Dioxide; D015946:Ethylene Dibromide; C098759:fluoroboric acid