78202-96-7Relevant academic research and scientific papers
SELEKTIVE EINFUEHRUNG VON FLUOR UND TRIFLUORMETHYLGRUPPEN IN HETEROCYCLISCHE SYSTEME SYNTHESE VON 5-FLUOR-4-TRIFLUORMETHYL-OXAZOLEN
Burger, Klaus,Goth, Herbert
, p. 585 - 590 (1981)
N--imidoylchlorides 4 on heating with trimethyl phosphate yield 5,5-difluoro-4-difluoromethylen-2-oxazolines 5.In the presence of caesium fluoride the latter rearrange to give 5-fluoro-4-trifluoromethyl-oxazoles
Reaction Behaviour of Trifluoromethyl Groups. Synthesis of 1,3-Azoles from Trifluoromethyl-substituted Hetero-1,3-dienes
Burger, Klaus,Ottlinger, Ralph,Goth, Herbert,Firl, Joachim
, p. 2494 - 2507 (2007/10/02)
4,4-Bis(trifluoromethyl)-substituted 1-oxa-3-aza-1,3-butadienes 1, 1-thia-3-aza-1,3-butadienes 2 as well as 1,3-diaza-1,3-butadienes 3 on heating with tin(II) chloride yield 5-fluoro-4-trifluoromethyl-substituted oxazoles 4, thiazoles 5, and imidazoles 6,
Thermolysis of 2,2-Dihydro-1,4,2-oxazaphosphol-4-enes, II. A Simple Synthesis for Fluorine Substituted N-Vinylimidoyl Chlorides
Burger, Klaus,Goth, Herbert,Burgis, Eduard
, p. 353 - 358 (2007/10/02)
3,3-Bis(chlorodifluoromethyl)-2,2,2-trimethoxy-2,2-dihydro-1,4,2-oxazaphosphol-4-enes (2) at room temperature, 3,3-bis(chlorodifluoromethyl)-2,2,2-triphenoxy-2,2-dihydro-1,4,2-oxazaphosphol-4-enes (3) at 140-145 deg C undergo cycloelimination of trimethyl and triphenyl phosphate, respectively, with formation of N--imidoyl chlorides (4) in high yields. - Keywords: Phosphorus Compounds, Cycloreversion Reactions, Chlorine Shift, 2-Azabuta-1,3-dienes
