Stereoselective Synthesis Of Tertiary Chlorides From Fluoroenes And Isoprene.pdf

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Preview of Stereoselective Synthesis of Tertiary Chlorides from Fluoroenes and Isoprene
🔗 Source: epub.ub.uni-muenchen.de
📊 Size: 345 KB
📄 Pages: 5 pages
⬇️ Downloads: 30

Summary

The article describes the synthesis of two new compounds, tertiary chlorides 8 and Y-2, from a reaction involving allylic chlorides 6a and 6b. The process involves several steps:

1. Synthesis of 6a and 6b: A 2:1 mixture of allylic chlorides 6a and 6b was obtained by reacting vanaspere with concentrated hydrobromic acid at a controlled temperature.

2. Stereoselective Cyclization: The reaction of 6a.b (obtained from the previous step) with isoprene in the presence of ZnCl/Et,O catalyst yielded an 85:15 mixture of tertiary chlorides 8 (mixture of 8-2 and Y-2).

3. Purification and Characterization: The mixture was analyzed using nuclear magnetic resonance (NMR) spectroscopy to assign configurations and confirm the structures of the compounds.

4. Conclusion: The authors conclude that the reaction proceeds with stereoselectivity, influenced by the isoprene's double bond configuration, leading to specific arrangements of substituents on the resulting chlorides.

Description

The Institute for Chemical Derivatives at the University of Lübeck reports the synthesis of novel compounds, including B- and Y,-type mumlmes, through electrochemical methods and the use of specific chlorides.

Technical Information

  • File Format: PDF
  • File Size: 345 KB
  • Pages: 5
  • Language: EN
  • Total Downloads: 30
  • Last Updated: 3 months ago

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