Mayr's Database of Reactivity Parameters

Isochalkogenoureas

For reactivities of structurally related compounds go to: Nucleophiles » N-Nucleophiles » Isochalkogenoureas

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Name Solvent Reactivity
Parameters 		Classification Reference
(title or year)
Te-DHPB (in CH2Cl2)
C10H10N2Te *
 dichloromethane

N  Param.: 16.63

sN Param.: 0.65		 *** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
tetramisole (TM) (in CH2Cl2)
C11H12N2S *
 dichloromethane

N  Param.: 13.86

sN Param.: 0.68		 *** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
BTM (in CH2Cl2)
C15H12N2S *
 dichloromethane

N  Param.: 13.06

sN Param.: 0.73		 *** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
7-F-BTM (in CH2Cl2)
C15H11FN2S *
 dichloromethane

N  Param.: 13.46

sN Param.: 0.66		 *** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
7-MeO-BTM (in CH2Cl2)
C16H14N2OS *
 dichloromethane

N  Param.: 13.15

sN Param.: 0.75		 *** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
DHPB (in CH2Cl2)
C10H10N2S *
 dichloromethane

N  Param.: 13.86

sN Param.: 0.78		 *** J. Org. Chem. 2011, 76, 5104-5112
10.1021/jo200803x
HBTM (in CH2Cl2)
C16H14N2S *
 dichloromethane

N  Param.: 13.45

sN Param.: 0.72		 *** J. Org. Chem. 2011, 76, 5104-5112
10.1021/jo200803x
Te-HyperBTM (in DCM)
C19H20N2Te *
 dichloromethane

N  Param.: 16.63

sN Param.: 0.63		 *** ChemistryEurope 2026, 4, e202500443
10.1002/ceur.202500443
8-MeO-HyperBTM
C20H22N2OS *
 dichloromethane

N  Param.: 15.70

sN Param.: 0.63		 *** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434
7-MeO-HyperBTM (in CH2Cl2)
C20H22N2OS *
 dichloromethane

N  Param.: 14.95

sN Param.: 2.67		 *** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434