¹H, ¹³C, ¹⁵N, ¹⁷O and ⁷⁷Se NMR of selenenamides

Abstract

Abstract Numerous areneselenenamides derived from ammonia, primary and secondary amines and two N,N ‐bis(arylseleno)alkylamines have been studied. The selenenamides bearing an electron‐withdrawing substituent on the aromatic moiety are stable. The 1 H, 13 C and 77 Se chemical shifts and some coupling constants are reported. For N.N ‐dialkyl‐ o ‐nitrobenzeneselenenamides, the 77 Se NMR and the 17 O NMR give evidence of an Se‐O interaction. In N ‐alkyl derivatives, a hydrogen bond between the amine group and the ortho ‐substituent is proposed to explain the deshielding of the selenium nucleus.