A new cyclization reaction of an aryl or vinyl halide bearing a carbonyl group such as ketone or ester has been developed by use of a stannyl anion generated in DMF from Bu(3)SnSiMe(3) and Bu(4)NCl.
A new cyclization reaction of an aryl or vinyl halide bearing a carbonyl group such as ketone or ester has been developed by use of a stannyl anion generated in DMF from Bu(3)SnSiMe(3) and Bu(4)NCl.
The Synthesis of Stereodefined Trisubstituted Olefins From Olefin Templates Using Pd Catalysis - Synthesis of the Antihypertensive Isbogrel
作者:Lawrence R. Rogers、Zissis Konstantinou、Madhav Reddy、Michael G. Organ
DOI:10.1002/ejoc.201100849
日期:2011.9
A collection of highly functionalized, trisubstituted olefin building blocks (templates) have been developed for their Pd-catalyzed elaboration into more complex structures, including natural products and compounds of medicinal chemistry interest. The Pd-mediated transformations involve a combination of allylic substitution and cross-coupling reactions. The templates have been designed such that these
E-Vinylsilanes were synthesized regioselectively from olefins with vicinalsilyl and stannylsubstituents, prepared from the corresponding terminal alkynes, by destannylation with HI.
E-乙烯基硅烷是由具有连位甲硅烷基和甲锡烷基取代基的烯烃区域选择性合成的,该烯烃由相应的末端炔烃通过用 HI 脱烷基化制备。