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- W2007440512 abstract "The 1,3-dipolar cycloaddition of methoxy- and ethoxycarbonylnitriloxide to 2,3- and 2,5-dihydrofuran, 2,3-dihydropyrane, 7-oxabicyclo[2,2,1]-2-heptene, and 1,3-dioxep-5-ene derivatives is described. The condensed isoxazolines Ia, IIIa, Va, Vb are rearranged on irradiation to give the methoxycarbonyl substituted enaminoaldehydes IIa, IVa, VIa, VIb , respectively. The photolysis of VIIc, VIIIa, VIIIc is connected with destruction. The quantum yields of the photorearrangement are higher than those of the phenyl substituted derivatives but lower than those of the corresponding cyano derivatives. The enaminoaldehydes IIa and VIa have been used for preparation of new heterocyclic pyridazino[4,5- d ]oxazine ( IX ) and pyridazino[7,8- d ]-2,4,6-dioxazocine ( X ) systems, respectively." @default.
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- W2007440512 date "1987-01-01" @default.
- W2007440512 modified "2023-10-07" @default.
- W2007440512 title "Preparation and photochemistry of 3-methoxycarbonyl substituted condensed isoxazolines" @default.
- W2007440512 doi "https://doi.org/10.1135/cccc19872953" @default.
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