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ChemInform Abstract: Cyclic Oligo(thio-2,5-thienylenes) (Sulfur-Bridged Calixarenes)

โœ Scribed by J. NAKAYAMA; N. KATANO; Y. SUGIHARA; A. ISHII


Publisher
John Wiley and Sons
Year
2010
Weight
26 KB
Volume
29
Category
Article
ISSN
0931-7597

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ChemInform Abstract: Preparation of Olig
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Preparation of Oligo(thio-2,5-thienylenes). -Oligomers containing an even number of thiophene rings are prepared starting from (I) and 2-bromothiophene in a similar manner. -(NAKAYAMA,

ChemInform Abstract: Synthesis and Struc
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Synthesis and Structure of (2,5)Thiophenophanes (n = 4-6). -The title compounds like (II) and (IV) are prepared by cyclization of the corresponding linear dibromo derivatives (I) and (III), resp., on reactions with Na 2 S. Best results are obtained in the presence of Cs 2 CO 3 . The X-ray structura