53596-82-0Relevant articles and documents
Facile synthesis of 3-(ω-acetoxyalkyl)thiophenes and derived copolythiophenes using Rieke zinc
Kudret, Suleyman,Kesters, Jurgen,Janssen, Sander,Van Den Brande, Niko,Defour, Maxime,Van Mele, Bruno,Manca, Jean,Lutsen, Laurence,Vanderzande, Dirk,Maes, Wouter
, p. 22 - 30 (2014/01/17)
An optimized synthetic protocol toward highly reactive Rieke zinc is applied for the preparation of a series of ω-(2,5-dibromothiophene-3-yl) alkyl acetate monomers and statistical copolythiophenes derived thereof, with 10% of ester-functionalized side chains. The obtained conjugated polymers are attractive electron donor materials for organic solar cells, notably to increase the thermodynamic stability of the bulk heterojunction polymer:fullerene active layer blend, and are fully characterized by a combination of spectroscopic, thermal analysis and electrochemical techniques.
Zn(ClO4)2·6H2O as a Powerful Catalyst for a Practical Acylation of Alcohols with Acid Anhydrides
Bartoli, Giuseppe,Bosco, Marcella,Dalpozzo, Renato,Marcantoni, Enrico,Massaccesi, Massimo,Sambri, Letizia
, p. 4611 - 4617 (2007/10/03)
A new protocol for the acylation of alcohols with anhydrides in the presence of Zn(ClO4)2·6H2O as the catalyst is reported. The activity of Zn(ClO4)2· 6H2O has been proven to be superior to that exerted by dry Mg(ClO4)2 and by metal triflates. Its efficiency allows reactions between poorly reactive substrates, such as sterically hindered tertiary alcohols and aromatic anhydrides, All of the reactions were carried out at a 1:1.05 alcohol/anhydride ratio. These conditions are extremely convenient from a practical and economic point of view, since they avoid wasting reagents and allow a simple workup procedure. The catalytic action of Zn(ClO4)2·6H2O is so specific for the activation of the anhydrides, that acid-sensitive functionalities and the stereochemical configuration of the starting materials remain unaltered in the esterification process. In all cases, the acylated products are quantitatively obtained in pure form. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.
A facile synthesis of 1,4-benzoquinones having a hydroxyalkyl side chain
Goto,Okamoto,Okutani,Imada
, p. 4422 - 4431 (2007/10/02)
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