Sequential Catalyst Phosphine/Secondary Amine Promoted [1+4]/Rearrangement Domino Reaction for the Construction of (2<i>H</i>)-Pyrans and 2-Oxabicyclo[2.2.2]oct-5-ene Skeletons
作者:Peizhong Xie、Jie Yang、Jie Zheng、You Huang
DOI:10.1002/ejoc.201301872
日期:2014.2
Sequential catalysis of a [2+4] reaction between a Baylis–Hillman carbonate and a β,γ-unsaturated α-oxo ester for the synthesis of 2-methyl-2H-pyran was developed. The use of a Morita–Baylis–Hillman carbonate as a C2 synthon is first disclosed in this reaction. This method offers a new approach to the construction of 2-methyl-2H-pyrans and 2-oxabicyclo[2.2.2]oct-5-ene skeletons.
开发了 Baylis-Hillman 碳酸酯和 β,γ-不饱和 α-氧代酯之间的 [2+4] 反应的顺序催化,用于合成 2-甲基-2H-吡喃。在该反应中首次公开了使用 Morita-Baylis-Hillman 碳酸盐作为 C2 合成子。该方法为构建2-甲基-2H-吡喃和2-氧杂双环[2.2.2]oct-5-烯骨架提供了一种新方法。