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A new optimized laboratory synthesis of tetraalkyl thiuram disulfides,  starting from dialkyl amines and carbon disulfide in presence of three  oxidants (hydrogen peroxide, potassium peroxodisulfate and sodium  hypochlorite) and appropriate reaction medium: two mixtures of isopropyl  alcohol - water used in two consecutive syntheses, was presented in this  work. First synthesis was performed in a recycled azeotropic mixture of  isopropyl alcohol - water 87.7% - 12.3%, and second in a filtrate obtained  after first synthesis, which was a mixture of isopropyl alcohol - water 70.4%  - 29.6%. After the second synthesis and filtration, recycled azeotropic  mixture isopropyl alcohol - water 87.7% - 12.3% was regenerated from the  filtrate by rectification. Considering this, the technology for beneficial  use of recycling isopropyl alcohol - water mixture as reaction medium for  tetraalkyl thiuram disulfides synthesis was developed. Such concept  contributes to extraordinary economical benefit of implemented optimal  laboratory synthesis at semi-industrial level. High yields of tetraalkyl  thiuram disulfides syntheses were obtained at both laboratory and  semiindustrial level. Structure and purity of synthesized compounds were  confirmed by elemental analysis, as well as FTIR, 1H and 13C NMR, and MS  spectral data

Synthesis of tetraalkyl thiuram disulfides using different oxidants in recycling solvent mixture