LXXVII.—The action of tribromopropane on the sodium derivative of ethyl malonate. Part II. Formation of Δ<sup>αζ</sup>-heptadi-inene-δ-carboxylic acid (ψ-m-toluic acid), (CH⋮C·CH<sub>2</sub>)<sub>2</sub>C(CO<sub>2</sub>H)<sub>2</sub>
Journal of the Chemical Society. Transactions