Electrophiles
	
    
    
        | Name | Solvent | Reactivity Parameters
 | Classification | Reference (title or
           year)
 | 
    
| 4-chlorobenzaldehyde-boron trichloride complex |  | E Param.: 1.44 |    | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
 | 
| tropylium ion |  | E Param.: -3.72 |    | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
 | 
| propyn-1-ylium-Co2(CO)6 |  | E Param.: -0.84 |    | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
 | 
| 1-phenyl-proyn-ylium-Co2(CO)6 |  | E Param.: -0.97 |    | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
 | 
| 3-phenylpropyn-1-ylium-Co2(CO)6 |  | E Param.: -1.58 |    | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
 | 
| 3-(trimethylsilyl)propyn-1-ylium-Co2(CO)6 |  | E Param.: -1.60 |    | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
 | 
| 1-phenyl-propyn-1-ylium-Co2(CO)5(PPh3) |  | E Param.: -6.19 |    | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
 | 
| 2-phenyl-1,3-dithiolan-2-ylium ion |  | E Param.: -5.91 |    | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
 | 
| 2-phenyl-1,3-dithianylium ion |  | E Param.: -6.43 |    | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
 | 
| 1,3-dithianylium ion |  | E Param.: -2.14 |    | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
 |