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The synthesis and ring opening of N-substituted-2-oxo-6-azaspiro[2,5] octanes

✍ Scribed by Frank D. Popp; Raymond F. Watts

Book ID
112125340
Publisher
Journal of Heterocyclic Chemistry
Year
1978
Tongue
English
Weight
123 KB
Volume
15
Category
Article
ISSN
0022-152X

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Ring opening reactions of 6-oxo-substitu
Ring opening reactions of 6-oxo-substituted spiro-pyrrolidinediones: Synthesis of 4-substituted-1,5-dihydro-3-hydroxy-2-oxo-1,5-diphenyl-2H-pyrroles
✍ David W. Emerson; Richard L. Titus; Marlon D. Jones 📂 Article 📅 1998 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 625 KB

## Abstract Reaction of 2‐oxocylalkaneglyoxylate esters with __N__‐phenylmethyleneaniline yields spiro compounds such as 2‐aza‐3,4,6,‐trioxo‐1,2‐diphenylspiro[4.4]nonane 4 and cycloalkane‐2‐aza‐3,4,6‐trioxo‐1,2‐diphenylspiro‐[4.5]decanes 5–7. These undergo solvolytic opening of the the oxocycloalka