Heteroaromatic Synthesis <i>via</i> Olefin Cross-Metathesis: Entry to Polysubstituted Pyridines
作者:Timothy J. Donohoe、José A. Basutto、John F. Bower、Akshat Rathi
DOI:10.1021/ol103088r
日期:2011.3.4
The olefin cross-metathesis reaction provides a rapid and efficient method for the synthesis of α,β-unsaturated 1,5-dicarbonyl derivatives which then serve as effective precursors to mono−tetrasubstituted pyridines. Manipulation of the key 1,5-dicarbonyl intermediate allows access to pyridines with a wide range of substitution patterns. An extension of this methodology facilitates the preparation of
烯烃的交叉复分解反应为合成α,β-不饱和1,5-二羰基衍生物提供了一种快速有效的方法,然后这些衍生物可用作单四取代吡啶的有效前体。关键的1,5-二羰基中间体的操作允许使用具有广泛取代模式的吡啶。该方法的扩展促进了嵌入大环内的吡啶的制备,例如通过(R)-(+)-muscopyridine的有效合成举例说明。高水平的区域控制,短的反应序列和容易的取代基变化都是该方法学的显着方面。