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.
A plausible chemical analogy for biosynthesis of 2-arylbenzofuran of isoflavonoid origin and its application to synthesis of vignafuran
作者:Takeshi Kinoshita
DOI:10.1016/s0040-4039(96)02276-9
日期:1997.1
2-arylbenzofuran in good yield, and a mechanism for this chemical conversion involving loss of one carbon unit was described. This reaction scheme was suggested as a plausible chemicalanalogy for the corresponding biosynthetic process of 2-arylbenzofuran of isoflavonoid origin, and a new biosynthetic scheme depicting 2-hydroxy-isoflav-3-ene as the possible common intermediate for both 2-arylbenzofuran and