Abstract A variety of derivatives incorporating substituted heterocycle-phosphor motifs is described. Substituted N, P-heterocycles and derived phosphonates were produced efficiently in a tandem operation without intermediate isolation. The synthesis methodology is based on the reaction of dialkyl phosphites with Schiff base Kabachnik–Fields intermediates, which are generated in situ from 2-amino-4, 6-di-tert-butylphenol and ...
![2,4-ditert-butyl-6-[(hydroxyamino)methylidene]cyclohexa-2,4-dien-1-one Structure](https://image.chemsrc.com/caspic/229/72357-43-8.png)