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Bis-Bromine-1,4-Diazabicyclo[2.2.2]Octane (Br2-DABCO) as an Efficient Promoter for One-Pot Conversion of N-Arylglycines to N-Arylsydnones in the Presence of NaNO2/Ac2O Under Neutral Conditions

Bis‐Bromin‐1,4‐diazabicyclo[2.2.2]octane (Br2‐DABCO)‐promoted one‐pot conversion of various N‐arylglycines to sydnones using a combination of NaNO2 and Ac2O has been achieved efficiently through N‐nitrosation followed by cyclization in high yields (90‐96%) under mild and neutral conditions. Bis‐Brom...

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Bibliographic Details
Published in:Journal of the Chinese Chemical Society (Taipei) 2008-04, Vol.55 (2), p.464-467
Main Authors: Ghasemnejad-Bosra, Hassan, Haghdadi, Mina, Khanmohammade, Omid, Gholipour, Abdoreza M., Asghari, Gharibreza
Format: Article
Language:English
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Summary:Bis‐Bromin‐1,4‐diazabicyclo[2.2.2]octane (Br2‐DABCO)‐promoted one‐pot conversion of various N‐arylglycines to sydnones using a combination of NaNO2 and Ac2O has been achieved efficiently through N‐nitrosation followed by cyclization in high yields (90‐96%) under mild and neutral conditions. Bis‐Bromin‐1,4‐diazabicyclo[2.2.2]octane (Br2‐DABCO)‐promoted one‐pot conversion of various N‐arylglycines to sydnones using a combination of NaNO2 and Ac2O has been achieved efficiently through N‐nitrosation followed by cyclization in high yields (90‐96%) under mild and neutral conditions.
ISSN:0009-4536
2192-6549
DOI:10.1002/jccs.200800069