Asymmetric Synthesis of Bicyclic Ketones Having an Angular Substituent via Ti(II) Alkoxide-Mediated Tandem Cyclization of Trisubstituted Olefinic Substrates
作者:Hirokazu Urabe、Daigaku Hideura、Fumie Sato
DOI:10.1021/ol9904038
日期:2000.2.1
[reaction: see text] Angularly substituted, optically active bicyclic ketones of up to 94% ee were prepared by the Ti(II) alkoxide-mediated tandem cyclization of open-chain substrates, that is, 8-phenylmenthyl enynoates having a trisubstituted double bond.
[反应:参见正文]通过Ti(II)醇盐介导的开链底物的串联环化反应制备了高达94%ee的角取代的旋光双环酮,即具有三取代双键的8-苯基薄荷基烯酸酯。