Zobrazeno 1 - 10
of 491
pro vyhledávání: '"Helmut Ritter"'
Autor:
Judita Britner, Helmut Ritter
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 12, Iss 1, Pp 2378-2389 (2016)
The first detailed study on free-radical polymerization, copolymerization and controlled radical polymerization of the cyclic push–pull-type monomer methylenelactide in comparison to the non-cyclic monomer α-acetoxyacrylate is described. The exper
Externí odkaz:
https://doaj.org/article/ba57d3f10ee04a0ab5f5159a8333aa35
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 12, Iss 1, Pp 1395-1400 (2016)
The double alkylation of N-vinylpyrrolidone (N-VP) with 1,8-dibromooctane yields paraffin-like oligomeric chains bearing polymerizable vinyl moieties. These oligomers were radically crosslinked in bulk with N-VP as co-monomer yielding swellable polym
Externí odkaz:
https://doaj.org/article/d0bded0a56ff4cd3a9031e5784c70ac0
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 12, Iss 1, Pp 245-252 (2016)
We describe the synthesis of bromo-tert-butyloxycarbonyl (Br-t-BOC)-amino-protected monomers 2-((1-bromo-2-methylpropan-2-yl)oxycarbonylamino)ethyl (meth)acrylate 3a,b. For this purpose, 2-isocyanatoethyl (meth)acrylate 1a,b was reacted with 1-bromo-
Externí odkaz:
https://doaj.org/article/b923a297330340f2a4e091a6f70e6782
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 10, Iss 1, Pp 2480-2483 (2014)
In the present work we report the synthesis of poly((4-hydroxy-3-(pyridin-3-yldiazenyl)phenethyl)methacrylamide-co-dimethylacrylamide) and its reversible optical and complex-forming properties due to copper and cyclodextrin (CD) interactions. Color c
Externí odkaz:
https://doaj.org/article/e1f2e89d0cf244248d6f789e3be20c66
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 10, Iss 1, Pp 2361-2366 (2014)
The oxidative oligomerization of a chiral mandelamide derivative (N-(4-hydroxyphenyl)mandelamide, 1) was performed in the presence of horseradish peroxidase, laccase and N,N'-bis(salicylidene)ethylenediamine-iron(II) to obtain chiral oligophenols 2.
Externí odkaz:
https://doaj.org/article/00d013f3e98a45faa161370605f38f49
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 10, Iss 1, Pp 2263-2269 (2014)
The synthesis of a new phenolphthalein azide derivative, which can be easily utilized in polymer analogous reactions, is presented. The subsequent cycloaddition reaction with propargyl-functionalized methoxypoly(ethylene glycol) yielded polymers bear
Externí odkaz:
https://doaj.org/article/9518ff454ab94b8d80ff674ffb71d49a
Autor:
Alexander Burkhart, Helmut Ritter
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 10, Iss 1, Pp 1951-1958 (2014)
The monomer 2-methacrylamido-caprolactam (4) was synthesized from methacryloyl chloride (3) and racemic α-amino-ε-caprolactam (2). Copolymerization of 4 with N,N-dimethylacrylamide (5) was carried out by a free-radical mechanism using 2,2’-azobis
Externí odkaz:
https://doaj.org/article/13bea631400244319d204b62d1ec527a
Autor:
Sebastian Reinelt, Monir Tabatabai, Urs Karl Fischer, Norbert Moszner, Andreas Utterodt, Helmut Ritter
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 10, Iss 1, Pp 1733-1740 (2014)
Thiol–ene photopolymerizations gain a growing interest in academic research. Coatings and dental restoratives are interesting applications for thiol–ene photopolymerizations due to their unique features. In most studies the relative flexible and
Externí odkaz:
https://doaj.org/article/f15b425f7d0a4c979351b7bb7aba2b21
Autor:
Daniela Ailincai, Helmut Ritter
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 5, Iss 1, Pp 651-657 (2014)
A new compound composed of poly(ε-caprolactone) and β-cyclodextrin (β-CD) was synthesized by click chemistry. This compound was used to obtain stable nanoparticles, which have been proven to be able to complex phenolphthalein and adamantyl carboxy
Externí odkaz:
https://doaj.org/article/e35a4161427948d2aabf2711930a5218
Autor:
Oliver Goerz, Helmut Ritter
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 10, Iss 1, Pp 902-909 (2014)
Isosorbide was esterified with acryloyl chloride and crotonic acid yielding isosorbide diacrylate (9a) and isosorbide dicrotonate (9b), which were reacted with benzaldehyde oxime in the presence of zinc(II) iodide and boron triflouride etherate as ca
Externí odkaz:
https://doaj.org/article/5435c94bec7c478b85b92d64bedca73e