Synthesis of 5-substituted uracils and 2,4-dimethoxypyrimidines by wittig olefination
作者:Evdoxia Coutouli-Argyropoulou、Christina Zachariadou
DOI:10.1002/jhet.5570420615
日期:2005.9
A variety of new 5-alkenyluracils has been prepared in high yields by Wittig olefination of 5-formyl-1-octy-luracil, 5-formyl-1,3-dioctyluracil and 5-formyl-2,4-dimethoxy pyrimidine with stabilized and semistabi-lized phosphorus ylides. The conformation of the products is discussed on the basis of 1H NMR spectral data.
高纯度的各种新的5-烯基尿嘧啶是通过将稳定化的5-甲酰基-1-辛基-尿嘧啶,5-甲酰基-1,3-二辛基尿嘧啶和5-甲酰基-2,4-二甲氧基嘧啶进行Wittig烯化反应而制得的。半稳定的磷化氢。基于1 H NMR光谱数据讨论产物的构象。