Room-Temperature Columnar Liquid-Crystalline Perylene Imido-Diesters by a Homogeneous One-Pot Imidification―Esterification of Perylene-3,4,9,10-tetracarboxylic Dianhydride
In: European journal of organic chemistry (Print), 2011, Heft 4, S. 707-712
Online
academicJournal
- print, 19 ref
Zugriff:
The reaction of PTCDA (perylene-3,4,9,10-tetracarboxylic dianhydride) with an alcohol, a bromoalkane, and an alkylamine in the presence of DBU in DMF yields imido-diester-substituted perylenes. The reaction is limited to polar alcohols such as propanol, but longer alkyl chains are efficiently introduced in a second step by alkyl group exchange by using selective acidic ester hydrolysis that leaves the imide group intact. This amine-efficient approach to imido-diesters is used to obtain acceptor-type self-assembling dyes that form a hexagonal columnar liquid crystalline phase at room temperature.
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Room-Temperature Columnar Liquid-Crystalline Perylene Imido-Diesters by a Homogeneous One-Pot Imidification―Esterification of Perylene-3,4,9,10-tetracarboxylic Dianhydride
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Autor/in / Beteiligte Person: | KELBER, Julien ; BOCK, Harald ; THIEBAUT, Olivier ; GRELET, Eric ; LANGHALS, Heinz |
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Zeitschrift: | European journal of organic chemistry (Print), 2011, Heft 4, S. 707-712 |
Veröffentlichung: | Weinheim: Wiley-VCH, 2011 |
Medientyp: | academicJournal |
Umfang: | print, 19 ref |
ISSN: | 1434-193X (print) |
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