The chemistry of pyrrolic compounds. XIX. Reactions of pyrrolic compounds with orthoformates

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Abstract
A mixture of triethyl orthoformate and trifluoroacetic acid has been developed as a means of formulating certain pyrroles and dipyrrylmethanes. The advantages and disadvantages of the procedure are discussed. The use of p-toluenesulphonic acid with orthoformate converts pyrroles into tripyrrylmethanes.