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- W1978753602 abstract "Two octalindiones, namely 9-methyl-Δ5,10-octalin-1,6-dione (VI) and 5,9-dimethyl-Δ5,10-octalin-1,6-dione (VII), each consisting of a Δ1-cyclohexenone ring (ring A) fused to a cyclohexanone ring (ring B), underwent selective expansion to lactams by the Schmidt reaction depending upon the acid medium employed. The cyclohexanone ring rearranged in concentrated sulfuric acid to a substituted caprolactam. An α,β-unsaturated lactam resulted from expansion of ring A in both conc hydrochloric and molten trichloroacetic acids. Unexpectedly, the reaction of VI in trichloroacetic acid produced an enamine lactam (XIII)." @default.
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- W1978753602 date "1970-01-01" @default.
- W1978753602 modified "2023-10-14" @default.
- W1978753602 title "Selective ring expansion of Δ5,10-octalin-1,6-diones via the Schmidt reaction" @default.
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- W1978753602 doi "https://doi.org/10.1016/s0040-4020(01)93078-9" @default.
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