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Synlett 1999; 1999(12): 1978-1980
DOI: 10.1055/s-1999-2971
DOI: 10.1055/s-1999-2971
letter
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Generation and Capture of Iminyl Radicals from Ketoxime Xanthates
Further Information
Publication History
Publication Date:
31 December 1999 (online)
![](https://www.thieme-connect.de/media/synlett/199912/lookinside/thumbnails/10.1055-s-1999-2971-1.jpg)
Irradiation of ketoxime O-(S-methyl xanthates) containing a γ,δ-double bond leads to a dihydropyrrole through cyclisation of an intermediate iminyl radical in a radical chain reaction. The last propagation step involves transfer of a dithiocarbonate group and various external radical traps can be incorporated into the medium, allowing access to a variety of substituted dihydropyrroles.
iminyl radicals - 5 exo cyclisation - dihydropyrroles