1‐Cyano‐4‐Dimethylaminopyridinium Tetrafluoroborate

[59016-55-6] C8H10BF4N3 (MW 234.991) InChI = 1S/C8H10N3.BF4/c1-10(2)8-3-5-11(7-9)6-4-8;2-1(3,4)5/h3-6H,1-2H3;/q+1;-1 InChIKey = MBLVMDCQDCVKNE-UHFFFAOYSA-N (S-Cyanylation of cysteine side chain for the preparation of peptide acids,1,2 peptide amides,3–5 peptide hydrazide,6–7 and dehydroalanine.8–9 O-Cyanylation of hydroxyl group of sugars10,11) Alternative Names: 1-cyano-4-(dimethylamino)pyridin-1-ium tetrafluoroborate; 1-cyano-N,N-dimethyl-1,4-dihydropyridin-4-iminium tetrafluoroborate. Physical Data: mp 196–200 °C, λmax 301 nm (in CH3CN). Solubility: soluble in H2O and CH3CN.