Synthesis of 1,2,3,4‐Tetrahydrobenzofuro[3,2‐
<i>d</i>
]pyrimidines via [4+2] Annulation Reaction of 1,3,5‐Triazinanes and Aurone‐Derived α,β‐Unsaturated Imines
作者:Bin Cheng、Xinping Zhang、Shengxian Zhai、Yixuan He、Qingqing Tao、Hui Li、Jian Wei、Haiyan Sun、Taimin Wang、Hongbin Zhai
DOI:10.1002/adsc.202000713
日期:2020.9.21
A [4+2] annulation reaction of 1,3,5‐triazinanes and aurone‐derived α,β‐unsaturated imines has been developed, which enables the synthesis of 1,2,3,4‐tetrahydrobenzofuro[3,2‐d]pyrimidines under thermal conditions in high yields. This protocol is catalyst‐free and additive‐free.
已开发出1,3,5-三嗪并与紫罗兰素衍生的α,β-不饱和亚胺进行[4 + 2]环合反应,从而可以合成1,2,3,4-四氢苯并呋喃[3,2- d在热条件下高产率制备嘧啶嘧啶。该协议不含催化剂和添加剂。