54802-11-8Relevant academic research and scientific papers
Synthesis and analgesic activity of some substituted 1-benzofurans and 1-benzothiophenes
Radl, Stanislav,Hezky, Petr,Konvicka, Petr,Krejci, Ivan
, p. 1093 - 1108 (2007/10/03)
2-Benzoyl-and 2-(pyridylcarbonyl)-1-benzofuran-3-amines were prepared from 2-hydroxybenzonitrile and corresponding bromoethanone derivatives. 2-Benzoyl-and 2-(pyridylcarbonyl)-1-benzothiophene-3-amines were prepared analogously from 2-sulfanyl-benzonitril
SYNTHESIS AND REACTIONS OF 2,4-DISUBSTITUTED BENZOFURANO-, BENZOTHIENO- AND INDOLO-1,3-OXAZINIUM SALTS
Tolkunov, S. V.,Voshchula, V. N.,Zemskaya, E. A.,Dulenko, V. I.
, p. 1310 - 1312 (2007/10/02)
Under acid catalyzed acylation 3-acetamidobenzofuran, -benzothiophene, and -indole undergo heterocyclization to condensed 1,3-oxazinium salts.Treatment of the salts with ammonium acetate in acetic acid gives the corresponding benzofurano- and ben
