PROCESS FOR PRODUCING DENDRIMER, BUILDING BLOCK COMPOUND, AND PROCESS FOR PRODUCING THIOPHENE COMPOUND

摘要

A process for producing by the convergent method a dendrimer having repeating structural units represented by the following general formula (1) which each comprises a linear moiety comprising a thienylene structure and a branched moiety (Y) comprising an optionally substituted trivalent organic group. The process comprises: a reaction step (1) in which the alpha-position hydrogen of the thiophene ring of a compound (a) shown below having a thienylene structure constituting an end part is converted to an active group V1 which undergoes the Suzuki cross-coupling reaction to thereby form a compound (b) shown below; a reaction step (2) in which a compound (c) shown below comprising a linear moiety and the branched moiety (Y) and having in the branched moiety (Y) two active groups (V2) which undergo the Suzuki cross-coupling reaction with the active group (V1) is subjected to the Suzuki cross-coupling reaction with the compound (b) to obtain a compound (d) shown below; a reaction step (3) in which the alpha-position hydrogen of the thiophene ring of this reaction product is converted to an active group (V1) undergoing the Suzuki cross-coupling reaction and this active group (V1) is reacted with a compound (c) shown below to form a next-generation dendrone; and a step in which the reaction step (3) is repeated according to need to form a dendrimer.