申请人:Research Corporation
公开号:US04190579A1
公开(公告)日:1980-02-26
Azetidine carboxylic acid esters are converted into enol silyl ethers which, as enamino ketene acetals, undergo ready oxidative cleavage of the ethylenically unsaturated double bond, e.g. by dye-sensitized photo-oxygenation, to form beta-lactams. The beta-lactams and substitution products thereof are useful intermediates in the synthesis of biologically active lactams.
氮杂四元环羧酸酯可以转化为烯醇硅基醚,作为烯胺酮基酮醇缩合物,经过染料敏化的光氧化反应,可以轻易地断裂不饱和双键,形成β-内酰胺。β-内酰胺及其取代产物是合成生物活性内酰胺的有用中间体。