An Anion-Induced Regio- and Chemoselective Acylation and Its Application to the Synthesis of an Anticancer Agent
摘要:
[GRAPHICS]An efficient Grignard- and organolithium-Induced regio- and chemoselective anionic acylation is reported. A number of tricyclic ketones are prepared in good to excellent yields via this method. This method is complementary to the Frieldel-Crafts acylation for elect ron-deficient substrates. A novel anisole-based Grignard reagent was developed to effect the cyclization of sterically hindered substrates. This novel reagent has been successfully applied to the synthesis of Sch 66336, a candidate for oncologic treatment.
An Anion-Induced Regio- and Chemoselective Acylation and Its Application to the Synthesis of an Anticancer Agent
摘要:
[GRAPHICS]An efficient Grignard- and organolithium-Induced regio- and chemoselective anionic acylation is reported. A number of tricyclic ketones are prepared in good to excellent yields via this method. This method is complementary to the Frieldel-Crafts acylation for elect ron-deficient substrates. A novel anisole-based Grignard reagent was developed to effect the cyclization of sterically hindered substrates. This novel reagent has been successfully applied to the synthesis of Sch 66336, a candidate for oncologic treatment.
An Anion-Induced Regio- and Chemoselective Acylation and Its Application to the Synthesis of an Anticancer Agent
作者:Marc Poirier、Frank Chen、Charles Bernard、Yee-Shing Wong、George G. Wu
DOI:10.1021/ol016809d
日期:2001.11.1
[GRAPHICS]An efficient Grignard- and organolithium-Induced regio- and chemoselective anionic acylation is reported. A number of tricyclic ketones are prepared in good to excellent yields via this method. This method is complementary to the Frieldel-Crafts acylation for elect ron-deficient substrates. A novel anisole-based Grignard reagent was developed to effect the cyclization of sterically hindered substrates. This novel reagent has been successfully applied to the synthesis of Sch 66336, a candidate for oncologic treatment.