Propellane, 8. Mitt.: Eine neue Synthese von Bis-Propellanen. 1,2,4,5-Bis{8′,11′-dioxa[4.3.3]propella(3′,4′)}benzol
✍ Scribed by Janusz Jamrozik; Wojciech Żesławski
- Publisher
- Springer Vienna
- Year
- 1992
- Tongue
- English
- Weight
- 202 KB
- Volume
- 123
- Category
- Article
- ISSN
- 0026-9247
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## Abstract The title compound 5 was obtained from 2,2′,3,3′‐tetramethylbiphenyl in a multi‐step reaction sequence leading to the bis(propellane). X‐ray structure analysis proved the identity of bis(propellane). In the solid state the molecule possesses roughly a twofold symmetry axis perpendicular
**A new Synthesis of 8‐Hydroxy‐2‐methyl‐1,2,3,4‐tetrahydroisoquinoline** __Vilsmeier__ formylation of __N__‐[2‐(3,5‐dimethoxyphenyl)ethyl]‐trifluoroacetamide (**5**) yielded the aldehyde **6**, which under mild basic conditions was hydrolyzed to **7** and cyclized to 6,8‐dimethoxy‐3,4‐dihydroisoqui