Methanol → HCID 22151959, compound

Participants

Reaction Steps

4-Chloro-12H-dibenzo[d,g][1,3]dioxocin-6-carboxylic acid (6.24 g of impure from Ex. 11, 22 mmol) was treated with methanol using the procedure of Examples 3 and 7. The crude product was purified by preparative liquid chromatography eluting with a 10:90 mixture of acetone and hexane to obtain 1.0 g (15 percent of theory) of the title compound as a solid melting at 107°-108° C. The proton nmr spectrum was consistent with the assigned structure.

Provenance & Evidence