ALBEROLA, A.;ORTEGA, A. G.;PEDROSA, R.;BRAGADO, J. L.;AMO, J. F. R., J. HETEROCYCL. CHEM., 1983, 20, N 3, 715-718
作者:ALBEROLA, A.、ORTEGA, A. G.、PEDROSA, R.、BRAGADO, J. L.、AMO, J. F. R.
DOI:——
日期:——
A Short-step Convenient Synthesis of 2-Phenylbenzofuran from 3-Phenylcoumarin
作者:Takeshi Kinoshita、Koji Ichinose
DOI:10.3987/com-05-10424
日期:——
The reaction mechanism of chemical conversion of (E)-beta-[2-hydroxylphenylcthylene]benzeneethanol into 2-phenylbenzofuran by DDQ, which involves loss of one carbon unit, was characterized and described. Five naturally occurring 2-phenylbenzofurans of not only the isoflavonoid but also stilbenoid origin were synthesized by use of this chemical scheme, which proved that this new scheme is a useful tool for quick synthesis of 2-phenylbenzofurans.
Synthesis of substituted 2<i>H</i>[1]benzopyrans from coumarins and chromones
作者:A. Alberola、A. González Ortega、R. Pedrosa、J. L. Pérez Bragado、J. F. Rodríguez Amo
DOI:10.1002/jhet.5570200341
日期:1983.5
A convenient route to substituted 2H[1]benzopyrans is described in which trialkylaluminium compounds are added to coumarins or chromones and the resultant Z-2-(3-hydroxy-1-propenyl)phenols are converted by thermal cyclization in the presence of silica gel to 2H[l]benzopyrans.
描述了一种取代2 H [1]苯并吡喃的简便方法,其中将三烷基铝化合物添加到香豆素或色酮中,并在二氧化硅存在下通过热环化反应将生成的Z -2-(3-羟基-1-丙烯基)苯酚转化凝胶至2 H [1]苯并吡喃。