4-Methyl-1,3-isobenzofurandione → Ethyl 3-(4-methyl-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-(2-methyl-[1,3]dioxolan-2-yl)propionate

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Reaction Steps

Ethyl 3-(4-methyl-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-(2-methyl-[1,3]dioxolan-2-yl)propionate was prepared (0.57 g, 76%) in the same manner as described in the above example 5 (20) from ethyl 3-amino-2-(2-methyl-[1,3]dioxolan-2-yl)propionate (0.60 g, 3.25 mmol) and 3-methylphthalic anhydride (0.79 g, 4.87 mmol), and the obtained product was identified with the following NMR data.

Provenance & Evidence