Please use this identifier to cite or link to this item: https://doi.org/10.1002/chem.200901398
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dc.titleBisanthracene bis(dicarboxylic imide)s as soluble and stable NIR dyes
dc.contributor.authorYao, J.H.
dc.contributor.authorChi, C.
dc.contributor.authorWu, J.
dc.contributor.authorLoh, K.-P.
dc.date.accessioned2014-10-16T08:21:35Z
dc.date.available2014-10-16T08:21:35Z
dc.date.issued2009-09-21
dc.identifier.citationYao, J.H., Chi, C., Wu, J., Loh, K.-P. (2009-09-21). Bisanthracene bis(dicarboxylic imide)s as soluble and stable NIR dyes. Chemistry - A European Journal 15 (37) : 9299-9302. ScholarBank@NUS Repository. https://doi.org/10.1002/chem.200901398
dc.identifier.issn09476539
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/93204
dc.description.abstractA series of soluble and stable near-infrared (NIR) dyes based on laterally expanded bisanthracene bis(dicarboxylic imide)s M1-M4, which can also be regarded as dibenzoperylene derivatives, was reported. The anthracene dicarboxylic imide dimer 5 was synthesized by [Ni(cod)2]-mediated Yamamoto homocoupling of 4b and this was followed by tBuOK- and 1,5- diazabicyclo[4.3.0]non-5-ene (DBN)-mediated cyclization reaction to afford the desired cis-bisanthracene bis(dicarboxylic imide)s M2 in 85% yield. The transisomer M3 was obtained in 8% yield by heating the anthracene dicarboxylic imide 4a in melted KOH. Separation of the compound 7a from other isomers was successful after the attachment of the 2,6-diisopropylaniline groups. The dimer 8 was then prepared by a similar Yamamoto coupling and followed by tBuOK- and DBN-mediated cyclization reaction. M1-M4 have very good solubility in common organic solvents such as CH2Cl2 and THF and they showed intense absorptions in NIR regions with absorption maximum at 830nm.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1002/chem.200901398
dc.sourceScopus
dc.subjectAnthracenes
dc.subjectDyes/pigments
dc.subjectHydrogenation
dc.subjectRylenes
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.description.doi10.1002/chem.200901398
dc.description.sourcetitleChemistry - A European Journal
dc.description.volume15
dc.description.issue37
dc.description.page9299-9302
dc.description.codenCEUJE
dc.identifier.isiut000270435500005
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