THE C-ALKYLATION OF NITROALKANE ANIONS BY 1-SUBSTITUTED-2-T-BUTYL-4-PHENYL- AND -2,4-DIPHENYL-5,6-DIHYDROBENZOQUINOLINIUM CATIONS.

Article abstract of DOI:10.1016/S0040-4020(01)91797-1

The N-substituents are transferred from the title cations to the C-atom of nitroalkane anions in high yield at 25-80 deg C in DMSO solution.The title cations are readily available from the appropriate pyrylium cations and primary amines of types RCH₂NH₂ and RR'CHNH₂, allowing a general 2-step method for the preparation of higher nitroalkanes.Spectral properties of a variety of nitroalkanes are discussed.