90345-46-3Relevant academic research and scientific papers
On the design of new europium heteroaromatic carboxylates for OLED application
Koshelev, Daniil S.,Chikineva, Tatyana Yu,Kozhevnikova (Khudoleeva), Vladislava Yu,Medvedko, Alexey V.,Vashchenko, Andrey A.,Goloveshkin, Alexander S.,Tsymbarenko, Dmitry M.,Averin, Alexey A.,Meschkov, Anna,Schepers, Ute,Vatsadze, Sergey Z.,Utochnikova, Valentina V.
, (2019/06/18)
The approach to the directed synthesis of lanthanide aromatic carboxylates – precursors to the electroluminescent materials, - was proposed, namely the conjugation length increase and heteroatom introduction in the appropriate position in combination with
Dithiocarboxylic Acids, Dithiocarboxylic Esters, or Thiocarboxylic Amides by Reaction of Methylene-active Chloromethyl Compounds with Sulfur
Thiel, W.,Mayer, R.
, p. 243 - 262 (2007/10/02)
With a mixture of sulfur and amine in DMF at room temperature halomethyl compounds (1,5-10) can be oxidized to give thiocarboxylic acids (2,11-16) and their derivatives (3,4,17-35).We studied this reaction in detail especially with chloroacetic derivatives (11-15) or chloromethyl heterocycles (16) formally derived from chloroacetic acid.The resulting thiooxalic acid derivatives (11-27) represent activated acids and very useful C2-synthons, especially for the synthesis of heterocycles.Oxidation in the presence of triethylamine leads to dithiocarboxylates (11-16) which can be alkylated to dithioesters (17-27) in high yields.As a rule, with different primary and secondary amines instead of tertiary amines these dithiocarboxylates or dithiocarboxylic esters can be transformed already at low temperatures to thioamides (28-35).
