作者:Dirk Sielemann、Ralf Keuper、Nikolaus Risch
DOI:10.1002/(sici)1099-0690(200002)2000:3<543::aid-ejoc543>3.0.co;2-v
日期:2000.2
All these products possess a keto group which will allow further transformations. The same concept was applied for the synthesis of the S-shaped terpyridine 25. The reaction of the Mannich base 21 with 1,3-cyclohexanedione yielded the heptacyclic terpyridine 22, which is a key intermediate for the synthesis of torands and other tridentate clefts. The ketone 12a was used for the synthesis of the quaterpyridine
提出了一种退火反应,其中使用 1,3-环己二酮 (1) 和曼尼希碱 6a、b 制备官能化联吡啶 12a、13a、14a 和二氢吡啶衍生物 10b、11b。所有这些产品都拥有一个酮基,这将允许进一步的转化。同样的概念也用于合成 S 型三联吡啶 25。曼尼希碱 21 与 1,3-环己二酮反应生成七环三联吡啶 22,这是合成 torands 和其他三齿裂隙的关键中间体。酮 12a 用于合成四联吡啶 26。