Reaction of Dimethyl Sulphoxide and Trifluoroacetic Anhydride with 3-Nitro-4-hydroxycoumarin
Corresponding Author(s) : Khaliquz Zaman Khan
saithfb7@rediffmail.com
Asian Journal of Chemistry,
Vol. 22 No. 5 (2010): Vol 22 Issue 5
Abstract
The interaction of dimethyl sulphoxide-trifluoroacetic anhydride (DMSO-TFAA) with 3-nitro- 4-hydroxycoumarin (1) gives four products, viz. 2-nitroso-3-oxo-2,3-dihydro-1-benzofuran-2- carboxylic acid (2), 3-(methylthiomethyl]-3-nitro-2H-chromene-2,4(3H)-dione (4), salicylic acid and 4H-[1,3]-dioxolo[4,5-c]chromene-2,4-dione (6).
Keywords
Trifluoroacetic anhydride
3-Nitro-4-hydroxycoumarin
DMSO
(1)
Ara, T.; Zaman Khan, K. Reaction of Dimethyl Sulphoxide and Trifluoroacetic Anhydride With 3-Nitro-4-Hydroxycoumarin. ajc 2010, 22, 3397-3403.
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