8H-Anhydro-4-hydroxy-2-oxo-1,3-thiazinium Hydroxides as Mesionic 1,4-Dipoles

 
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1995 (EN)
8H-Anhydro-4-hydroxy-2-oxo-1,3-thiazinium Hydroxides as Mesionic 1,4-Dipoles (EN)

Padwa, A.; (EN)

Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας (EL)
Padwa, A.; (EN)

The previously unknown 8H-anhydro-4-hydroxy-2-oxo-1 ,3-thiazinium hydroxides (1) were prepared and their 1,4-dipolar cycloaddition behavior was examined. ln most cases, elimination of the proton in the 8-position of the mesoionic ring was observed to occur unless extremely reactive dipolarophiles were used. The S,Nketene acetals were converted to the corresponding Ξ±-diazo ketones for further study. (EN)

Πανεπιστήμιο Ιωαννίνων (EL)
University of Ioannina (EN)

Heterocycles (EN)

English

1995




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