| but-3-en-2-one (in DMSO) | DMSO | E Param.: -16.76 |    | J. Am. Chem. Soc. 2017, 139, 13318-13329 10.1021/jacs.7b05106
 | 
| 1-phenylprop-2-en-1-one (in DMSO) | DMSO | E Param.: -15.25 |    | J. Am. Chem. Soc. 2017, 139, 13318-13329 10.1021/jacs.7b05106
 | 
| ethyl 2-methylprop-2-enoate (in DMSO) | DMSO | E Param.: -22.77 |   | J. Am. Chem. Soc. 2017, 139, 13318-13329 10.1021/jacs.7b05106
 | 
| ethyl (E)-but-2-enoate (in DMSO) | DMSO | E Param.: -23.59 |   | J. Am. Chem. Soc. 2017, 139, 13318-13329 10.1021/jacs.7b05106
 | 
| ethyl cinnamate (in DMSO) | DMSO | E Param.: -24.52 |   | J. Am. Chem. Soc. 2017, 139, 13318-13329 10.1021/jacs.7b05106
 | 
| (E)-1-methyl-4-(styrylsulfonyl)benzene (in DMSO) | DMSO | E Param.: -24.69 |   | J. Am. Chem. Soc. 2017, 139, 13318-13329 10.1021/jacs.7b05106
 | 
| ethenesulfonyl fluoride (ESF) | DMSO | E Param.: -12.09 |    | Angew. Chem. Int. Ed. 2016, 55, 12664-12667 10.1002/anie.201601875
 | 
| 2-phenylethene-1-sulfonyl fluoride | DMSO | E Param.: -16.63 |    | Angew. Chem. Int. Ed. 2016, 55, 12664-12667 10.1002/anie.201601875
 | 
| (E)-2-(tert-butyl)-3-(4-methylbenzylidene)-3H-indol-1-ium | dichloromethane | E Param.: -5.06 |  | Eur. J. Org. Chem. 2016, , 4050-4058 10.1002/ejoc.201600572
 | 
| 3-benzylidene-1-methyl-3H-indol-1-ium ion |  | E Param.: -1.80 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298
 | 
| 1-methyl-3-(4-methylbenzylidene)-3H-indol-1-ium ion |  | E Param.: -2.19 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298
 | 
| 3-(4-methoxybenzylidene)-1-methyl-3H-indol-1-ium iom |  | E Param.: -3.02 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298
 | 
| 3-(4-(dimethylamino)benzylidene)-1-methyl-3H-indol-1-ium ion |  | E Param.: -6.26 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298
 | 
| 1-methyl-3-((julolidin-9-yl)methylene)-3H-indol-1-ium ion |  | E Param.: -7.79 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298
 | 
| (E)-2-methyl-3-(4-methylbenzylidene)-3H-indol-1-ium ion |  | E Param.: -5.15 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298
 | 
| (E)-1,2-dimethyl-3-(4-methylbenzylidene)-3H-indol-1-ium ion |  | E Param.: -5.05 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298
 | 
| (E)-3-benzylidene-1,2-dimethyl-3H-indol-1-ium ion |  | E Param.: -4.96 |   | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298
 | 
| bis(1-methylindol-3-yl)methylium ion |  | E Param.: -5.99 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298
 | 
| bis(5-methoxy-1-methylindol-3-yl)methylium ion |  | E Param.: -6.90 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298
 | 
| bis(1,2-dimethylindol-3-yl)methylium ion |  | E Param.: -10.23 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298
 |