Efficient synthesis of novel furo[2,3-d]pyrimidine derivatives under catalyst-free conditions
作者:Chunmei Li、Furen Zhang
DOI:10.1016/j.tetlet.2017.03.019
日期:2017.4
A series of furo[2,3-d]pyrimidine derivatives were synthesized via the [3+2] cyclization of pyrimidine-4,6-diol and a variety of nitroolefins at catalyst-free conditions. The reaction is easy to perform simply mixing inexpensive starting materials in water under conventional heating at 90 °C. The reaction proceeds at a fast speed within 1.5–2 h and gives the high biological and pharmacological active
在没有催化剂的条件下,通过嘧啶-4,6-二醇和多种硝基烯烃的[3 + 2]环化反应,合成了一系列呋喃[2,3- d ]嘧啶衍生物。在常规的90°C加热条件下,只需将廉价的起始原料在水中混合即可轻松进行反应。反应在1.5–2小时内快速进行,并以高产率或高产率获得了高生物和药理活性取代基呋喃[2,3- d ]嘧啶衍生物。还提出了这些呋喃并[2,3- d ]嘧啶衍生物的形成机理。