The interaction of homophthalic anhydride with (triphenylphosphoranylidene)acetates
DOI:
https://doi.org/10.17721/fujcV5I2P62-67Keywords:
homophthalic anhydride, (triphenylphosphoranylidene)acetates, Wittig reaction, self-condensation of homophthalic anhydrideAbstract
In the study of the interaction of homophthalic anhydride and methyl (triphenylphosphoranylidene)acetate, along with (1-oxo-1H-isochromen-3‑yl)acetate obtaining, two minor products – (1,3-dioxo-1,2,3,4-tetrahydronaphthalene-2-yl)acetate and 2‑((1‑oxo-1H-isochromen-3-yl)methyl)benzoic acid – had been isolated. The action of tert‑butyl (triphenylphosphoranylidene)acetate on homophthalic anhydride didn’t lead to Wittig reaction; the encumbered ylide demonstrated only its basicity, and products of homophthalic anhydride self-condensation – 2‑((1‑oxo-1H-isochromen-3-yl)methyl)-benzoic acid and 12-hydroxy-5H-dibenzo[c,g]chromen-5-one – were formed.References
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