211-53-0Relevant academic research and scientific papers
Unexpected rearrangement during the gas-phase dehalogenation approach to benzodithiophenes
Aitken, R. Alan,Oyewale, Adebayo O.
, p. 19379 - 19381 (2015/04/14)
A range of halogenated methylthiophenes undergo dehalogenative condensation upon FVP over magnesium or calcium to give products including benzodithiophenes; in some cases this involves a novel rearrangement by equilibration of alkenylthienyl radicals via thiophene-fused cyclopropylmethyl intermediates. This journal is
CATALYTIC SYNTHESIS OF BENZOTHIOPHENE AND BENZODITHIOPHENES
Ryashentseva, Margarita A.,Minachev, Khabib M.
, p. 627 - 630 (2007/10/02)
A heterocyclization reaction, namely, the interaction of H2S and ethylbenzene with the formation of benzothiophene on an effective catalyst has been studied in a flowing bed system under atmospheric pressure at temperatures from 525 to 625 deg C, a liquid ethylbenzene space velocity, νwt., from 0.3 to 1.3 h-1 and a 2:9.0 H2S/ethylbenzene molar ratio.On the basis of the kinetic data obtained, it is suggested that the heterocyclization reaction proceeds via dehydrogenation of ethylbenzene to styrene.Two isomeric benzodithiophenes have been prepared from H2S and p-diethylbenzene using the same catalyst.
