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Synthesis of Tetrastilbenylmethanes by Wittig−Horner Reactions
Author(s) -
Kim Soungkyoo,
Seus Peter,
Meier Herbert
Publication year - 2004
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.200300707
Subject(s) - wittig reaction , chemistry , isomerization , chromophore , stereochemistry , photochemistry , organic chemistry , catalysis
Abstract The all‐( E )‐configured tetrastilbenylmethanes 3a − e and 5a , b can be obtained by fourfold Wittig−Horner reactions. The tetrahedral arrangement of these compounds guarantees independent stilbenoid chromophores with a high chromophore density. Apart from ( E )/( Z ) isomerization reactions, irradiation leads to a three‐dimensional network with isolated unchanged stilbene units. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)