Výsledky vyhledávání - "Hassan Fakhrnabavi"

Towards a Selective Functionalization of Amino-Terminated Dendrimers

Autor: Oleg Lukin, Sonja Müller, Jörg H. Friedhofen, Hassan Fakhrnabavi, Fritz Vögtle, Christoph A. Schalley

Publikováno v: European Journal of Organic Chemistry. 2004:4717-4724

Selective functionalization of the periphery of commercial polypropyleneamine (POPAM) and polyamidoamine (PAMAM) dendrimers has been investigated in preparative scale. The first generation (G1) POPAM dendrimer was for the first time selectively N,N-b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6faaf04d84738563d91bcf548418bf39
https://doi.org/10.1002/ejoc.200400472

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Controllable, Selective Per-Functionalization of Dendritic Oligoamines

Autor: Fritz Voegtle, Hassan Fakhrnabavi, Oleg Lukin

Publikováno v: Organic Letters. 6:1075-1078

A method allowing for an unprecedented controllable functionalization of oligoamines via N,N-bis-sulfonylation with various sulfonyl chlorides has been developed. Depending on the nature of the sufonyl chloride and reaction conditions such as base, t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18c47210e871e7cb5104fde7bf6a849d
https://doi.org/10.1021/ol030130n

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Prearranged Glycosides, Part 10. Intramolecular Glycosylation with Cellobiosyl, Lactosyl, and Maltosyl Donors

Autor: Gregor Lemanski, Thorsten Lindenberg, Hassan Fakhrnabavi, Thomas Ziegler

Publikováno v: Journal of Carbohydrate Chemistry. 19:727-745

Acetyl protected 1,2-O-(1-methoxyethylidene)-disaccharides 1 of maltose, cellobiose, and lactose, respectively were converted via the corresponding benzyl protected couterparts 2, the benzyl protected phenyl 2-O-acetyl- 3 and 2-O-unprotected 1-thio-g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9f04d79ae63900c9cbe880aa4d8b907
https://doi.org/10.1080/07328300008544113

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Supramolecular assembly of electrochromic films of terpyridine-functionalized polyiminocarbazolylene metal complexes

Autor: Anna Maier, Bernd Tieke, Hassan Fakhrnabavi, A. Raman Rabindranath

Preparation, metal ion complexation and coordinative assembly of polyiminocarbazolylenes with terpyridine substituent groups into organized electrochromic films are described. Polymers P-2,7 and P-3,6 were prepared upon Pd-catalyzed coupling of 2,7-d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da8095c59a04dc4653dfa99564fc8c3b
https://publica.fraunhofer.de/handle/publica/225769

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First generation TREN Dendrimers Functionalized with Naphthyl and/or Dansyl Units. Ground and Excited State Electronic Interactions and Protonation Effects

Autor: Paolo Passaniti, Fritz Vögtle, Mauro Maestri, Hassan Fakhrnabavi, Oleg Lukin, Giacomo Bergamini, Paola Ceroni

We report the photophysical properties (absorption and emission spectra, quantum yield, and lifetime) of five dendrimers of first generation based on a TREN (tris(2-aminoethyl)amine) skeleton functionalized at the periphery with naphthyl and/or 5-dim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6e11d192d1e8a0d66bfddf663e8581d
http://hdl.handle.net/11585/52973

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A combined ESI- and MALDI-MS(/MS) study of peripherally persulfonylated dendrimers: false negative results by MALDI-MS and analysis of defects

Autor: Hassan Fakhrnabavi, Oleg Lukin, Christoph A. Schalley, Thorsten Felder

Publikováno v: Chemistry (Weinheim an der Bergstrasse, Germany). 11(19)

Mass spectrometry, in particular MALDI-MS, has often been used as a valuable means to characterize dendritic molecules with respect to their molecular masses. Also, it is a valuable tool for analyzing potential defects in their structure which result

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6709381d5efb8747a53b4ce9fe75e644
https://pubmed.ncbi.nlm.nih.gov/16034993

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Ground and Excited-State Electronic Interactions in Poly(propylene amine) Dendrimers Functionalized with Naphthyl Units: Effect of Protonation and Metal Complexation

Autor: Sang-Kyu Lee, Mauro Maestri, Paolo Passaniti, Vincenzo Balzani, Fernando Pina, Fritz Vögtle, Jeroen van Heyst, Hassan Fakhrnabavi, Marius Gorka

We report the absorption spectra and the photophysical properties (fluarescence spectrum, quantum yield, and lifetime) of four dendrimers of the polylpropylene amine) family (POPAMs) functionalized at the periphery with naphthylsuffonamide (hereafter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8c7aeb56325f7b21b8e9f396c637863
http://hdl.handle.net/11585/720

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