Dimeric and trimeric flavonoids containing a cyclopentane ring: 6,7-diaryl-6a,7,13,13a-tetrahydro-6H-7,13-methano[1]benzopyrano[3,4-c][1]benzoxepins
作者:Ben R. Brown、A. William R. Tyrrell
DOI:10.1039/p19840001963
日期:——
4,4′-Biflav-2-enes react with electrophiles in the presence of alcohols, yielding substituted 6,7-diaryl-6a,7,13,13a-tetrahydro-6H-7,13-methano[1]benzopyrano[3,4-c][1]benzoxepins, e.g.(6)–(15). The structures and stereochemistries of these compounds have been deduced from their conversion into other analogues, e.g.(18)–(21), and from n.m.r. studies.
4,4'-Biflav-2-enes在醇的存在下与亲电试剂反应,生成取代的6,7-二芳基-6a,7,13,13a-四氢-6 H -7,13-甲醇[1]苯并吡喃[ 3,4- c ] [1]苯并妥辛,例如(6)–(15)。这些化合物的结构和立体化学是由它们转化为其他类似物,例如(18)–(21)以及nmr研究得出的。