作者:Ken YOSHIOKA、Izumi TAKAISHI、Kazunari SHIOZAWA、Yukiharu FUKUSHI、Satoshi TAHARA
DOI:10.1271/bbb.80306
日期:2008.10.23
Efficient syntheses of 14H-dinaphtho[1,8-bc:1',8'-fg]oxocin-14-one (2), 14H-dinaphtho[1,8-bc:1',2'-f]oxepin-14-one (3), and 2,2'(2H,2'H)-spirobi[naphtho[1,8-bc]furan] (9) are described. The putative structure of 2 has been reported previously, but the synthetic route was not reproducible. 7H-Dibenzo[c,h]xanthen-7-one (4), a known compound, was obtained by a different method. Possible reaction mechanism
有效合成14H-地萘[1,8-bc:1',8'-fg] oxocin-14-一(2),14H-地萘[1,8-bc:1',2'-f] oxepin-描述了14-一(3)和2,2′(2H,2′H)-螺双[萘并[1,8-bc]呋喃](9)。先前已报道了2的推定结构,但合成途径不可重现。通过不同的方法获得了已知的化合物7H-二苯并[c,h]黄原-7-(4)。提出了可能的反应机理。