Chemical modification of plant alkaloids. 6. T-reactions of anabasine derivatives
摘要:
首次进行了阿那巴新衍生物的 T 反应。5- 硝基-2-[2-(3-吡啶基)哌啶]苯甲醛与 1,3-二甲基巴比妥酸缩合,形成了一个环化的四氢喹啉体系,其 T 反应产物含有一个螺嘧啶分子。同样的醛与 Meldrum's 酸缩合时会发生再化学反应,导致哌啶环打开,四氢喹啉酮体系闭合。T 反应的第三种形式是与二甲双酮缩合,这种反应也会导致哌啶环打开,但不会发生再造反应。
Chemical modification of plant alkaloids. 6. T-reactions of anabasine derivatives
摘要:
首次进行了阿那巴新衍生物的 T 反应。5- 硝基-2-[2-(3-吡啶基)哌啶]苯甲醛与 1,3-二甲基巴比妥酸缩合,形成了一个环化的四氢喹啉体系,其 T 反应产物含有一个螺嘧啶分子。同样的醛与 Meldrum's 酸缩合时会发生再化学反应,导致哌啶环打开,四氢喹啉酮体系闭合。T 反应的第三种形式是与二甲双酮缩合,这种反应也会导致哌啶环打开,但不会发生再造反应。
Chemical modification of plant alkaloids. 6. T-reactions of anabasine derivatives
作者:K. A. Krasnov、V. G. Kartsev
DOI:10.1007/s10600-011-9782-y
日期:2011.1
T-reactions of anabasine derivatives were performed for the first time. Condensation of 5-nitro-2-[2-(3pyridyl)piperidino]benzaldehyde with 1,3-dimethylbarbituric acid formed an annelated tetrahydroquinoline system containing a spiropyrimidine moiety as the T-reaction product. Condensation of this same aldehyde with Meldrum’s acid was accompanied by recyclization that led to opening of the piperidine ring and closing of the tetrahydroquinolone system. A third version of the T-reaction that also led to opening of the piperidine ring but without recyclization was the condensation with dimedone.
首次进行了阿那巴新衍生物的 T 反应。5- 硝基-2-[2-(3-吡啶基)哌啶]苯甲醛与 1,3-二甲基巴比妥酸缩合,形成了一个环化的四氢喹啉体系,其 T 反应产物含有一个螺嘧啶分子。同样的醛与 Meldrum's 酸缩合时会发生再化学反应,导致哌啶环打开,四氢喹啉酮体系闭合。T 反应的第三种形式是与二甲双酮缩合,这种反应也会导致哌啶环打开,但不会发生再造反应。