Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Helmut Kipphardt"'
Publikováno v:
Molecules, Vol 27, Iss 6, p 1778 (2022)
Organic acids, typically derived from an oil-based value chain, are frequently used as corrosion inhibitors in industrial metal working fluids. The criteria for selection of these corrosion inhibitors have changed in the last decades, and are today n
Externí odkaz:
https://doaj.org/article/b8704dc56d0f47a99999918cc35b6a65
Publikováno v:
Materials and Corrosion. 74:394-402
Publikováno v:
Amino Acids.
We present alkali salts of amino acids as functional, non-toxic, non-hazardous, non-volatile, chemically stable, and cheap alkaline additives for common acidic corrosion inhibitors. The resulting mixtures have been evaluated for Co, Ni, and Cu leachi
Autor:
Wolfgang Maison, Sebastian G. Wicha, Marcus Rohnke, Tim Naundorf, Wolfgang R. Streit, Helmut Kipphardt, Tugba Catmadim, Astrid Bröker, Christel Vollstedt, Serge Kliewer, Eva Katharina Oellingrath
Publikováno v:
Colloids and Surfaces B: Biointerfaces. 186:110679
Polyethylene (PE) foils were modified with potent contact-active antibacterial quaternary ammonium salts (QAS) by an atmospheric air plasma activation step, followed by graft-polymerisation of vinylbenzyltrimethylammonium chloride (VBTAC) monomers. T
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 97:691-704
The synthesis of a variety of enantiomerically pure chiral auxiliaries based on (S)-proline and bearing sterically demanding side chains at the pyrrolidine moiety, such as the secondary amines (S)-3,5 and 7 and the hydrazines (S)-6, is described on a
Publikováno v:
Organic Syntheses
Asymmetric syntheses using the SAMP-/RAMP-hydrazone method: (S)-(+)-4-methyl-3-heptanone intermediate: SAMP-hydrazone (S)-2 intermediate: (S)-(+)-4-Methyl-3-heptanone SAMP hydrazone [(ZSS)-3] product: (S)-(+)-4-Methyl-3-heptanone [(S)-4] byproduct: n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce284ae1d997e5839fdae9d541ead1b3
https://doi.org/10.1002/0471264180.os065.24
https://doi.org/10.1002/0471264180.os065.24
Publikováno v:
Organic Syntheses
(S)-(−)-1-amino-2-methoxymethylpyrrolidine (SAMP) and (R)-(+)-1-amino-2-methoxymethylpyrrolidine (RAMP), versatile chiral auxiliaries product: (R)-(+)-1-amino-2-methoxymethylpyrrolidine (RAMP) intermediate: hydroxymethylpyrrolidine intermediate: (S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e97cbd5e77dab75c300b3ae5f25af74f
https://doi.org/10.1002/0471264180.os065.23
https://doi.org/10.1002/0471264180.os065.23
Publikováno v:
Angewandte Chemie. 102:226-228
Autor:
Helmut Kipphardt, Dieter Enders
Publikováno v:
Nachrichten aus Chemie, Technik und Laboratorium. 33:882-888