Search results for: CHIRAL DERIVATIZATION
-
A new approach to the stereoselective synthesis of trans-3-carbamoyl-b-lactam moieties†
PublicationOne-pot synthesis of optically active 1,4-disubstituted-3-carbamoyl-azetidinones from 5-[(N-arylamino)- (hydroxyl)methylene]-2,2-dimethyl-1,3-dioxa-4,6-diones and chiral aldimines is achieved via thermal generation of carbamoyl ketenes and subsequent [2+2] cycloaddition. Three possible chiral induction approaches were tested and (R)-(+)-1-phenylethylamine was confirmed as the best chiral auxiliary. Among the four possible diastereoisomers,...
-
China Review-An Interdisciplinary Journal on Greater China
Journals -
Viral Hepatit Dergisi-Viral Hepatitis Journal
Journals -
Transmissible Viral Proventriculitis Caused by Chicken Proventricular Necrosis Virus Displaying Serological Cross-Reactivity with IBDV
Publication -
Impacts of heavy metals and medicinal crops on ecological systems, environmental pollution, cultivation, and production processes in China
Publication -
Przegląd rodzajów chiralnych faz stacjonarnych oraz możliwości ich zastosowań w chromatografii cieczowej
PublicationChromatograficzne rozdzielanie związków optycznie czynnych ma ogromne znaczenie nie tylko w przemyśle farmaceutycznym, ale i agrochemicznym, a także w badaniach naukowych różnego rodzaju. W niniejszym opracowaniu scharakteryzowano komercyjnie dostępne chiralne fazy stacjonarne na bazie, cyklodekstryn, polisacharydów, makrocyklicznych antybiotyków, eterów koronowych, a także fazy proteinowe, ligandowymienne, jonowymienne oraz fazy...
-
Chiral [Mn II Mn III 3 M′] (M′=Na I , Ca II , Mn II ) and [Mn II Mn III 6 Na I 2 ] Clusters Built from an Enantiomerically Pure Schiff Base: Synthetic, Chiroptical, and Magnetic Properties
Publication -
CHINA OCEAN ENGINEERING
Journals -
CHINA ECONOMIC REVIEW
Journals -
China-An International Journal
Journals -
Agricultural Sciences in China
Journals -
China & World Economy
Journals -
Late Imperial China
Journals -
China Nonprofit Review
Journals -
Frontiers of Mathematics in China
Journals -
Frontiers of History in China
Journals -
Frontiers of Physics in China
Journals -
Frontiers of Law in China
Journals -
Frontiers of Education in China
Journals -
Science China-Chemistry
Journals -
China Surface Engineering
Journals -
Early Medieval China
Journals -
China and WTO Review
Journals -
Frontiers of Philosophy in China
Journals -
Frontiers of Economics in China
Journals -
Geological Bulletin of China
Journals -
China Business Review
Journals -
Social Sciences in China
Journals -
Ship Building of China
Journals -
Twentieth-Century China
Journals -
Chiba Medical Journal
Journals -
Journal of Fisheries of China
Journals -
Science China-Materials
Journals -
Global Media and China
Journals -
China Tropical Medicine
Journals -
China Petroleum Exploration
Journals -
Clinical Medicine of China
Journals -
China CDC Weekly
Journals -
Journal of Contemporary China
Journals -
Induction of chirality in 4,4'-azopyridine by halogen-bonding interaction with optically active ditopic donors
PublicationOptically active ditopic halogen bond donors bearing two 4-iodotetrafluorophenyl groups were obtained by reaction of chiral diols with iodopentafluorobenzene. Co-crystallization of these donors with anti-4,4′-azopyridine afforded binary complexes containing infinite chains of the alternating component molecules connected by halogen bonds. The solid state CD measurements confirmed that complexation induces optical activity of the...
-
Grzegorz Boczkaj dr hab. inż.
People -
Shiraz E Medical Journal
Journals -
Cathodic Protection System of the Spiral Classifier at the KGHM Polska Miedź S.A. Ore Concentration Plant—Case Study of Commissioning and Control of Operating Parameters
PublicationThe project involved designing, constructing and commissioning a cathodic protection system for a selected spiral classifier operating at the KGHM Polska Miedź S.A. Ore Concentration Plant (O/ZWR). The authors developed a concept and assumptions regarding the corrosion protection of a large industrial device using a cathodic protection system with an external power source. Pre-project studies included conducting a trial polarization...
-
Enrichment of Bi-Be-Mo-Cd-Pb-Nb-Ga, REEs and Y in the Permian coals of the Huainan Coalfield, Anhui, China
Publication -
The Shadow of God in the Garden of the Philosopher. The Parc de La Villette in Paris in the Context of Philosophy of Chôra. Part I-V
PublicationThe book Shadow of God in the Philosopher's Garden. Parcde La Villette in Paris in the context of the philosophy of chôra presents the philosophical discussions that accompanied the design of the extensive park in the Parisian district of La Villette. The core of the park's theoretical framework were texts by Bernard Tschumi, in which he questioned the traditional ways of creating...
-
JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
Journals -
Catalytic Asymmetric Synthesis of Isochroman Derivatives
PublicationThe isochroman scaffold constitutes an important structural unit, which is present in various bioactive natural products and synthetic pharmaceutical compounds exhibiting wide arrays of biological properties. Hence the synthesis of this class of heterocyclic compounds in a stereoselective fashion is highly significant and desirable. In the last decade, a substantial advancement has been witnessed ln the catalytic asymmetric...
-
Revenues to the state budget from the sale of shares in state-owned banks in 1994-2000
Open Research DataOn June 14, 1996, a special law was passed on the merger and grouping of certain banks in the form of joint-stock companies. Pursuant to these regulations, the PeKaO S.A. banking group was established, which was the only entity of this type established in this way. Additionally, by the end of 1996, four out of nine regional banks were sold, i.e. Wielkopolski...
-
Towards more (un)balanced trade. Production linkages between China and the Visegrad countries: country-level and sector-level analysis
Publication -
China-Russia Bilateral Security and Military Partnership in Changing World Order: Security Challenges for the United States of America in Asia and Beyond
Publication