A new three-step domino Knoevenagel–hetero-Diels–Alder oxidation reaction
作者:Andriy O. Bryhas、Yuri I. Horak、Yuri V. Ostapiuk、Mykola D. Obushak、Vasyl S. Matiychuk
DOI:10.1016/j.tetlet.2011.02.081
日期:2011.5
A new catalyst-free domino Knoevenagel–hetero-Diels–Alder oxidationreaction is reported. 6H-Chromeno[4′,3′:4,5]thiopyrano[2,3-d][1,3]thiazol-4-ium-2-olates are formed in good yields via reaction of 2-(2-propynyloxy)benzaldehydes with 4-thioxo-1,3-thiazolidin-2-one.
据报道,一种新的无催化剂多米诺Knoevenagel–杂Diels–Alder氧化反应。6 ħ -Chromeno [4',3':4,5]噻喃并[2,3- d ]形成在经由2-反应良好的产率[1,3]噻唑-4-鎓-2- olates(2-丙炔氧基)苯甲醛与4-thioxo-1,3-thiazolidin-2-one。