engleski

New pyrrole derivatives by photochemical intramolecular reaction

In one of our previous paper [1] we demonstrated the first example of the synthesis of the bicyclo[3.2.1]octdiene derivatives 1 by an intramolecular photocycloaddition of furanic stilbene-like compounds 2. Contrary to the furan derivatives 2 the styryl pyrrole 3 gives intermolecular addition product 4 in a regiospecific way [2]. In order to obtain the bicyclo-heteroaromatic structure 5 we have synthesised and irradiated the pyrrole derivative 6. The mechanism of the reaction as well as the structure determination of the products will be discussed.

2;2'-(o-phenylenedivinylene)dipyrrole; photocycloaddition; intramolecular reaction; pyrroles; photochemistry

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