A new synthetic route to 2-hydroxynaphthalene-1-carboxylic acid derivatives. An efficient access to the naphthalene moiety of neocarzinostatin chromophore
作者:Kozo Shishido、Akitake Yamashita、Kou Hiroya、Keiichiro Fukumoto、Tetsuji Kametani
DOI:10.1016/s0040-4020(01)89106-7
日期:1989.1
yields. Then, 7a,b,d were easily converted to the 2-naphthol 9 (R1=R2=H) by sequential dehydrogenation and deprotection. The method of conversion developed here has been successfully applied to an efficient synthesis of the methanolysis product 12 of neocarzinostatin chromophore 10.
1-碳甲氧基-1-链烯氧基苯并环丁烯4a-d的热解通过Eo-喹二甲烷的化学选择性电环反应以高收率产生了二氢萘7a-d。然后,通过顺序地脱氢和脱保护,将7a,b,d容易地转化为2-萘酚9(R 1= R 2= H)。在这里开发的转换方法已成功地应用于新carcarinostatin生色团10的甲醇分解产物12的有效合成。