201417-53-0Relevant academic research and scientific papers
Mesoionic 5-alkyl-1,3-dithiolium-4-thiolates: Synthesis and brine shrimp toxicity
De Almeida, Paulo Afonso,Da Silva, Tania Maria Sarmento,Echevarria, Aurea
, p. 593 - 600 (2002)
A series of twelve 1,3-dithiolium-4-thiolate mesoionic compounds were synthesized and characterized. The synthetical approach starting from α-bromoalkanoic acids to obtain the corresponding 2-N-morpholino-dithiocarbamoyl-carboxylic acids that by on-pot reaction with carbon disulfide and acetic anhydride in triethylamine formed not isolate intermediates, 1,3-dithiolium-4-olates. After, the 2-N-morpholino-5-alkyl-1,3-dithiolium-4-thiolates were obtained by retro 1,3-dipolar addition reactions. The alkyl moiety linked to C-5 of heterocyclic ring permitted the increase of the hydrophobic character and this effect was evaluated on Artemia salina lethality. The results indicated a bell-shaped relationship between the number of carbon of side chain in mesoionic derivatives and LD50 in brine shrimp toxicity assays.
Syntheses of 2-(2-Hydroxyethylamino) Fatty Acids
Xianxian, Du
, p. 123 - 124 (2007/10/02)
Eight 2-(2-hydroxyethylamino) fatty acids, 2-(2-hydroxyethylamino)decanoic, -undecanoic, -dodecanoic, -tetradecanoic, -hexadecanoic, -octadecanoic, -nonadecanoic, and docosanoic acid, were synthesized by reacting 2-bromo fatty acids with more than 3 mol of 2-aminoethanol.The surface tension and the critical micelle concentration were determined for these compounds.
