Aldiminium and 1,2,3-triazolium dithiocarboxylate zwitterions derived from cyclic (alkyl)(amino) and mesoionic carbenes.

ABSTRACT: The synthesis of zwitterionic dithiocarboxylate adducts was achieved by deprotonating various aldiminium or 1,2,3-triazolium salts with a strong base, followed by the nucleophilic addition of the in situ-generated cyclic (alkyl)(amino) or mesoionic carbenes (CAACs or MICs) onto carbon disulfide. Nine novel compounds were isolated and fully characterized by ¹H and ¹³C NMR, FTIR, and HRMS techniques. Moreover, the molecular structures of two CAAC·CS₂ and two MIC·CS₂ betaines were determined by X-ray diffraction analysis. The analytical data recorded for all these adducts were compared with those reported previously for related NHC·CS₂ betaines derived from imidazolinium or (benz)imidazolium salts. Due to the absence of electronic communi

SUBMITTER: Touj N 

PROVIDER: S-EPMC10760461 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature