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Novel 2-Phosphabicyclo[2.2.2]oct-5-ene Derivatives and Their Use in Phosphinylations.

✍ Scribed by Gyoergy Keglevich; et al. et al.


Publisher
John Wiley and Sons
Year
2004
Weight
74 KB
Volume
35
Category
Article
ISSN
0931-7597

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Novel 2-phosphabicyclo[2.2.2]oct-5-ene d
✍ György Keglevich; János Kovács; Tamás Körtvélyesi; Gyula Parlagh; Tímea Imre; Kr 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 303 KB 👁 1 views

## Abstract The [4 + 2] cycloaddition of the double‐bond isomers (**__A__** and **__B__**) of dihydrophosphinine oxide **__1__** afforded novel phosphabicyclo[2.2.2]oct‐5‐ene derivates (**__2–4__**), formation of which was justified by PM3 semiempirical calculations. The compounds of dimer type (**

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## Abstract A series of new P‐methylphenyl P‐heterocycles are introduced. The para and ortho substituted 2,5‐dihydro‐1H‐phosphole oxides (**__1a__** and **__1b__**) were converted to the double‐bond isomers (**__A__** and **__B__**) of 1,2‐dihydrophosphinine oxides (**__3a__** and **__3b__**) via t

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A 2-phosphabicyclo[2.2.2]oct-7-ene oxide (2) and a 2-phosphabicyclo[2.2.2]octa-5,7-diene oxide (3) with ethyl substituent on the phosphorus atom was synthesized and their fragmentation properties were studied. The phosphabicyclooctadiene oxide (3) could be utilized in both the UV light-mediated phos