Synthesis of biisoxazolinic spiro compounds
✍ Scribed by G. Lo Vecchio; G. Cum; G.Stagno d'Alcontres
- Book ID
- 103401784
- Publisher
- Elsevier Science
- Year
- 1964
- Tongue
- French
- Weight
- 99 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0040-4039
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## Abstract The reaction of 3,4‐dimethoxyphenethylamine with some cyclic aminoketones in the presence of polyphosphoric acid afforded 1‐spiro‐tetrahydroisoquinolines. A two‐step procedure starting from veratrylamine and amino‐ketones gave 3‐spiro‐tetrahydroisoquinolin‐4‐ones. The __Schmidt__ rearra
Cyclic dienaminones, synthesized from the a-carbon elongation reaction of cyclic ketones with vinamidinium salts, are useful synthetic intermediates to carbocyclic Spiro compounds. The list of naturally occurring carbocyclic Spiro compounds continues to grow, and as it does, the need for useful inte