Viologen-based benzylic dendrimers: selective synthesis of 3, 5-bis (hydroxymethyl) benzylbromide and conformational analysis of the corresponding viologen …

M Kathiresan, L Walder, F Ye, H Reuter

Index: Kathiresan, Murugavel; Walder, Lorenz; Ye, Fei; Reuter, Hans Tetrahedron Letters, 2010 , vol. 51, # 16 p. 2188 - 2192

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Citation Number: 22

Abstract

Convergent and divergent strategies for the synthesis of viologen dendrimers with 1, 3, 5-tri- methylene-branching units are discussed. The title compound is easily transformed into 1-[3, 5-bis (hydroxymethyl) benzyl]-4-(pyridin-4-yl) pyridinium hexafluorophosphate, which is used in sequential growth and activation steps as a CB2 compound in the cascade-type dendrimer synthesis (B=–OH, activation=–OH→ Br). Analysis of the dendrimer structure ...