Zobrazeno 1 - 9 of 9 pro vyhledávání: '"Diana Kalden"'
1
Mechanistic investigations on C–H activated dealkylating cyclo-amination reactions of substituted triazenes, formamidines and amidines
Autor: Diana Kalden, Wolfgang Imhof, Helmar Görls, Matthias Westerhausen, Paul R. W. Schönherr, Felix Wendler, Silvio Preusser
Publikováno v: Zeitschrift für Naturforschung B. 75:651-664
Catalytic dealkylating cycloamination reactions of N 1-methylated-N 1,N 3-diarylated triazenes proceed via two subsequent oxidative addition reactions, regioselectivity producing benzotriazoles by C–H and C–Br activation steps. Whereas palladium-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::855083a0e4137dedcc8573acb3ae3f72
https://doi.org/10.1515/znb-2020-0067
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4
Retinol initiated poly(lactide)s: stability upon polymerization and nanoparticle preparation
Autor: Nicole Fritz, Christine Weber, Grit Festag, Turgay Yildirim, Diana Kalden, Stephanie Schubert, Matthias Westerhausen, Ulrich S. Schubert, Ilknur Yildirim
Publikováno v: Polymer Chemistry. 8:4378-4387
The synthesis of retinol initiated polylactide (PLA) by ring opening polymerization (ROP) of L-lactide via in situ calcium alkoxide formation with all-trans-retinol and Ca[N(SiMe3)2]2(THF)2 is described. PLAs with degree of polymerization (DP) values
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9b27f3391e9dcc750e14996fce0718c8
https://doi.org/10.1039/c7py00881c
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5
One-pot synthesis of PLA-b-PHEA via sequential ROP and RAFT polymerizations
Autor: Anna C. Crecelius-Vitz, Pelin Sungur, Christine Weber, Ilknur Yildirim, Stephanie Hoeppener, Diana Kalden, Turgay Yildirim, Matthias Westerhausen, Ulrich S. Schubert
Publikováno v: Polymer Chemistry. 8:6086-6098
A block copolymer library of polylactide (PLA) and poly(2-hydroxyethyl acrylate) (PHEA) was prepared via sequential ring opening polymerization (ROP) and reversible addition fragmentation chain transfer (RAFT) polymerization in a one-pot approach. Th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a99c9e1893eb227f3d8b99daf6ec175a
https://doi.org/10.1039/c7py01176h
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6
Fluorescent amphiphilic heterografted comb polymers comprising biocompatible PLA and PEtOx side chains
Autor: Martin Sahn, Matthias Westerhausen, Diana Kalden, Tanja Bus, Ulrich S. Schubert, Christine Weber, Turgay Yildirim, Stephanie Hoeppener, Ilknur Yildirim, Anja Traeger
Publikováno v: Polymer Chemistry. 7:6064-6074
A series of amphiphilic heterografted comb polymers comprising various ratios of oligomeric polylactide (PLA) and poly(2-ethyl-2-oxazoline) (PEtOx) side chains was synthesized via the grafting-through method employing the reversible addition–fragme
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d6df1bffb7c962491270007b1feda27c
https://doi.org/10.1039/c6py01130f
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7
Zwitterionic Cellulose Carbamate with Regioselective Substitution Pattern: A Coating Material Possessing Antimicrobial Activity
Autor: Thomas Heinze, Klaus D. Jandt, Thomas Elschner, Bettina Löffler, Claudia Lüdecke, Diana Kalden, Martin Roth
Publikováno v: Macromolecular Bioscience. 16:522-534
A polyzwitterion is synthesized by regioselective functionalization of cellulose possessing a uniform charge distribution. The positively charged ammonium group is present at position 6, while the negative charge of carboxylate is located at position
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef2abf14a664e89ea1f02b7df622dd00
https://doi.org/10.1002/mabi.201500349
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8
Surprisingly Different Reaction Behavior of Alkali and Alkaline Earth Metal Bis(trimethylsilyl)amides toward Bulky N-(2-Pyridylethyl)-N'-(2,6-diisopropylphenyl)pivalamidine
Autor: Diana Kalden, Ansgar Oberheide, Helmar Görls, Sven Krieck, Matthias Westerhausen, Claas Loh
Publikováno v: Chemistry (Weinheim an der Bergstrasse, Germany). 22(31)
N-(2,6-Diisopropylphenyl)-N'-(2-pyridylethyl)pivalamidine (Dipp-N=C(tBu)-N(H)-C2 H4 -Py) (1), reacts with metalation reagents of lithium, magnesium, calcium, and strontium to give the corresponding pivalamidinates [(tmeda)Li{Dipp-N=C(tBu)-N-C2 H4 -Py
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7065da1e47e48f9bb6cbc418cc97dab0
https://pubmed.ncbi.nlm.nih.gov/27355970
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9
1,3-Bis(2,4,6-trimethylphenyl)triazenides of potassium, magnesium, calcium, and strontium
Autor: Diana Kalden, Matthias Westerhausen, Helmar Görls, Sven Krieck
Publikováno v: Dalton transactions (Cambridge, England : 2003). 44(17)
Metalation of 1,3-bis(2,4,6-trimethylphenyl)triazene (1) with KH, Mg(nBu)2, and [(L)2Ae{N(SiMe3)2}2] (Ae/L = Ca/thf, Sr/dme) yields the dinuclear complexes [(thf)2K{μ-N3(Mes)2}]2 (2a) and [(dme)K{μ-N3(Mes)2}]2 (2b) as well as mononuclear [(thf)2Mg{
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f055f02f7301d8aa73e29d08bda3dd38
https://pubmed.ncbi.nlm.nih.gov/25832489
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