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- W2015319164 abstract "The polar 1,4-cycloaddition of chlorosulfene (generated in situ from chloromethanesulfonyl chloride and triethylamine) to N,N-disubstituted (E)-2-aminomethylenecyclohexanones I gave mixtures of N,N-disubstituted cis and trans 4-amino-3-chloro-3,4,5,6,7,8-hexahydro-1,2-benzoxathiin 2,2-dioxides III and IV, except for N,N-diphenyl enaminone which did not react. Only compounds IV could be separated from these mixtures by silica gel chromatography, with the exception of the piperidino adducts (III + IV)d, from which also IIId could be obtained pure. Compounds IV or mixtures III + IV were dehydrochlorinated with DBN in refluxing benzene to afford N,N-disubstituted 4-amino-5,6,7,8-tetrahydro-1,2-benzoxathiin 2,2-dioxides V in satisfactory yields. Structural and conformational features of compounds III, IV and V were determined from uv, ir and nmr spectral data." @default.
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- W2015319164 date "1983-11-01" @default.
- W2015319164 modified "2023-09-23" @default.
- W2015319164 title "Reaction of substituted sulfenes withN,N-disubstituted α-amino-methyleneketones. II. Synthesis ofN,N-disubstitutedcisandtrans4-amino-3-chloro-3,4,5,6,7,8-hexahydro-1,2-benzoxathiin 2,2-dioxides, and 4-amino-5,6,7,8-tetrahydro-1,2-benzoxathiin 2,2-dioxides" @default.
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- W2015319164 doi "https://doi.org/10.1002/jhet.5570200622" @default.
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