Synthesis of 1,1,3-Trisubstituted Naphtho[2,3-c]pyran-5,10-dione Derivatives as Potential Redox Switches
作者:Tien-Lan Shie、Chi-Hui Lin、Shih-Lun Lin、Ding-Yah Yang
DOI:10.1002/ejoc.200700426
日期:2007.10
Five 1,1,3-trisubstituted naphtho[2,3-c]pyran-5,10-dione derivatives were designed and synthesized in five steps from 2-acetyl-1,3-indandione. Prepared quinones 6a–e instantly changed from either red or blue to yellow or orange red, when treated with sodium borohydride in methanol. The resulting reduced hydroquinones 9a–e reverted to their original colors within a few minutes after the reducing agent
五个 1,1,3-三取代的萘并 [2,3-c] 吡喃-5,10-二酮衍生物被设计和合成在五个步骤中从 2-乙酰基-1,3-茚满二酮。当用甲醇中的硼氢化钠处理时,制备的醌 6a-e 立即从红色或蓝色变为黄色或橙红色。在还原剂被消耗或去除后的几分钟内,生成的还原氢醌 9a-e 恢复到原来的颜色。虽然在还原之前没有检测到蓝色醌 6e 的荧光,但还原的氢醌 9e 发出红色荧光,量子产率为 0.07。(© Wiley-VCH Verlag GmbH & Co. KGaA,69451 Weinheim,德国,2007)