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Regio- and Stereoselective 1,3-Dipolar Cycloadditions to 6H-1,2-Oxazines Leading to New Heterobicyclic Compounds.

✍ Scribed by Elmar Schmidt; Hans-Ulrich Reissig; Reinhold Zimmer


Publisher
John Wiley and Sons
Year
2006
Weight
37 KB
Volume
37
Category
Article
ISSN
0931-7597

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1,3-Dipolar cycloadditions of 9-diazoflu
✍ Xiangyun Guo; Li Feng; Quanrui Wang; Zhiming Li; Fenggang Tao πŸ“‚ Article πŸ“… 2006 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 483 KB

2H-1,2,3-diazaphospholes 3 underwent ready 1,3-dipolar cycloaddition reactions with 9-diazofluorenes as the 1,3-dipole, yielding the respective bicyclic phosphiranes 5 or trimers 7 depending on the reaction conditions employed. The reaction is believed to proceed via the formation of the [3+2]cycloa