Preparation of Unsubstituted Dipyridine-Dibarbituric Acid Ylide Through Dimerization of Pyridin-2-ylmethylenepyrimidinetrione as a Reactive Intermediate.

Preparation of unsubstituted dipyridine-

Preparation of unsubstituted dipyridine-dibarbituric acid ylide through dimerization of pyridin-2-ylmethylenepyrimidinetrione as a reactive intermediate

✍ Branko S. Jursic 📂 Article 📅 2003 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 67 KB

## Abstract Preparation of 5,5′‐(pyridin‐2‐ylmethylene)dipyrimidinetrione from barbituric acid and 2‐pyridinecarbox‐aldehyde in any polar solvent is a straightforward synthetic procedure, while preparation of the dipyridine‐dibarbituric acid ylide from the same starting materials is sensitive to th