NMR and experimental reinvestigation of the condensation reaction between γ-methylene-α,β-unsaturated aldehydes and propargyl aldehydes
作者:Martín J. Riveira、Ariel M. Sarotti
DOI:10.1039/c7ob03110f
日期:——
The condensation reaction between a γ-methylene-α,β-unsaturated aldehyde and phenylpropargyl aldehyde was revisited and, guided by extensive DFT calculations of NMR shifts, was found to afford a deconjugative aldol condensation product. In this manner, a simple protocol for the preparation of valuable cross-conjugated oxatrienes was uncovered.
再次讨论了γ-亚甲基-α,β-不饱和醛与苯基炔丙基醛之间的缩合反应,并在大量的NMR位移DFT计算的指导下,发现该化合物可提供解共轭的醇醛缩合产物。以这种方式,发现了用于制备有价值的交叉缀合的氧杂蒽的简单方案。