Treatment of 1.4-diary1 -2. 3 -dimethy1-2, 3-epoxide of butane(1) with 2. 3-dichloro-5.6 6dicyano-1.4-benzoquinone(DDQ) in trifluoroacetic acid (TFA)furnishes a new benzofuran typeIignan (2) The structure of (2) was e...Treatment of 1.4-diary1 -2. 3 -dimethy1-2, 3-epoxide of butane(1) with 2. 3-dichloro-5.6 6dicyano-1.4-benzoquinone(DDQ) in trifluoroacetic acid (TFA)furnishes a new benzofuran typeIignan (2) The structure of (2) was esbolished by MS,IR,UV and NMR spectra.and X-ravcrystallographic analysis.展开更多
文摘Treatment of 1.4-diary1 -2. 3 -dimethy1-2, 3-epoxide of butane(1) with 2. 3-dichloro-5.6 6dicyano-1.4-benzoquinone(DDQ) in trifluoroacetic acid (TFA)furnishes a new benzofuran typeIignan (2) The structure of (2) was esbolished by MS,IR,UV and NMR spectra.and X-ravcrystallographic analysis.
