Dimethyl 4-hydroxy-o-phthalate

The reagent (1) reacts with dimethyl acetylenedicarboxylate in refluxing benzene with loss of methanol to give an adduct (a) that gives dimethyl 4 -hydroxy-o-phthalate (4) on hydrolysis. Cycloaddition of (1) and p-benzoquinone gives, after acetylation, 1,4,6-triacetoxynaphthalene (5). 

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

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