𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A 4+3 cycloaddition approach to the spatane ring system

✍ Scribed by Michael Harmata; Paitoon Rashatasakhon

Publisher
Elsevier Science
Year
2001
Tongue
French
Weight
61 KB
Volume
42
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis

The adduct of dichloroketene and cyclopentene was converted to a tricyclo[5.3.0.0 2,6 ]decane ring system using a 4+3 cycloaddition reaction followed by a quasi-Favorskii rearrangement as the key steps.

πŸ“œ SIMILAR VOLUMES

Assembly of the gephyrotoxin ring system
Assembly of the gephyrotoxin ring system via a [4+1] approach to 3-pyrrolines
✍ William H. Pearson; Yam-Foo Poon πŸ“‚ Article πŸ“… 1989 πŸ› Elsevier Science 🌐 French βš– 331 KB

Heating azidcdienes 19 at 70Β°C produced the tricyclic 3-pyrrolines 20 and 21 in one operation. The diastereoselectivity of this process was examined, and found to be controlled by the conformation of the cyclization precursor. Compound 20d incorporates the basic features of gephyrotoxin 3. Fused bi

1,3-dipolar cycloadditions. Part XII - s
1,3-dipolar cycloadditions. Part XII - selective cycloaddition route to 4-nitroisoxazolidine ring systems
✍ Avijit Banerji; Maya Gupta; Pizush Kanti Biswas; Thierry PrangΓ©; Alain Neuman πŸ“‚ Article πŸ“… 2007 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 474 KB

## Abstract magnified image Cycloadditions of __C,N__‐diarylnitrones to β‐nitrostyrenes occurred to yield two diastereoisomeric cycloadducts, the 3,4‐__trans__‐4,5‐__trans__ substituted isoxazolidine derivatives being formed selectively as the major products. These were characterised by spectrosco