Abstract

Synthesis of a new building block of symmetrically substituted pyrrole derivative, which is useful intermediate in the synthesis of known alkaloids and their marine analogues, is described. The substrate is anisaldehyde, which in six steps with the use of Knoevenagel condensation, hydrogenation of the aliphatic double bond and the key titanium(IV)-mediated oxidative dimerization of 2-azidocarboxylic ester allows to obtain the title derivative.

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