Electronic-State Switching Strategy in the Photochemical Synthesis of Indanones from <i>o</i>-Methyl Phenacyl Epoxides
作者:Peter Štacko、Tomáš Šolomek、Petr Klán
DOI:10.1021/ol202892r
日期:2011.12.16
photochemical step in the total synthesis of indanorine. The excited-state character of 4,5-dimethoxy-2-methylphenacyl epoxide was changed from an unfavorable 3π,π* state to a productive 3n,π* state by a temporary structural modification, resulting in a relatively efficient and high-yielding formation of an indanone derivative. The corresponding structural modification was selected on the basis of quantum
电子激发态转换策略已被用于控制茚满or碱的全合成过程中关键光化学步骤的选择性。4,5-二甲氧基-2- methylphenacyl环氧化物的激发态性质是从不利的改变3 π,π*状态到生产性3 N,π*通过临时结构修饰状态,从而导致相对高效和高生成茚满酮衍生物。在合成之前,根据量子化学计算选择相应的结构修饰。