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Polyphenylalkene derivativesQ 0740 DOI: 10.1002/chin.201037081

Direct Olefination of Benzaldehydes into Hydroxy Functionalized Oligo (p-Phe-nylenevinylenes)s via Pd-Catalyzed Heterodomino Knoevenagel-Decarboxyla-tion-Heck Sequence and Its Application for Fluoride Sensing π-Conjugated Units. — A series of 2- or 4-hydroxy substituted benzaldehydes is converted into stilbene de-rivatives by a Knoevenagel-decarboxylation-Heck sequence. Compound (VIc) demon-strates visible and fluorescent sensing for fluoride ions in organic and aqueous solu-tions. — (SHARMA, A.; SHARMA, N.; KUMAR, R.; SHARD, A.; SINHA*, A. K.; Chem. Commun. (Cambridge) 46 (2010) 19, 3283-3285, DOI:10.1039/c001980a ; Nat. Plant Prod. Div., Inst. Himalayan Bioresour. Technol., Palampur 176 061, India; Eng.) — R. Staver

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