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- W2071303902 abstract "2,2-Dimethyl-3-dimethylamino-2H-azirine (1) reacts with the formyl-cycloalkanones 4–8 in boiling benzene to give the 1:1 adducts 13–17 in 60–99% yield (Table). These adducts are N′-[(2-oxo-cycloalkylidene)-methyl] derivatives of 2-amino-N, N-dimethylisobutyramide. The reaction mechanism (Scheme 6) is analogous to the mechanism of the reaction of 1 with carboxylic acids and cyclic enolisable 1,3-diketones [1]. Sulfinic acids and 1 undergo a similar reaction at −15° to yield 2-sulfinamido-N, N-dimethylisobutyramides (Schemes 4 and 7), while sulfonic acids and the azirine 1 lead to a dimeric salt of type 20, which with sodium hydroxide gives the dihydropyrazine 21 (Scheme 5)." @default.
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- W2071303902 date "1975-04-23" @default.
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- W2071303902 title "Additionen von 2,2-Dimethyl-3-dimethylamino-2<i>H</i>-azirin an 2-Formyl-cycloalkanone und Sulfinsäuren" @default.
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- W2071303902 doi "https://doi.org/10.1002/hlca.19750580423" @default.
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