andareofteneasilyreducedwithRaneynickel(wecome backtothisinChapter46).Wecangetridofaldehydeandketonecarbonylgroupsbymakingthem intothioacetals,sulfuranaloguesofacetals,formedinareactionanalogoustoacetalformation(p. 000)butusingadithiolwithaLewisacidcatalyst.FreshlypreparedRaneynickelcarriesenoughH 2 (p.000)to...
Typical applications of carmine dye are merguez-type sausages as well assalamiand salami-type sausages displaying an intense red color. However, carmine was also used to replace nitrite in cooked sausages, particularly in organic meat production, where nitrite is undesired (Ruiz-Capillas et al., ...
High quality Al 1-x In x N/GaN bilayers, grown by metal organic chemical vapor deposition (MOCVD), were characterized using structural and optical techniques. Compositional analysis was performed using Rutherford backscattering spectrometry (RBS) and elastic recoil detection analysis (ERDA). The I...
The 2-bromo group has been e... GS Gill,DW Grobelny,JH Chaplin,... - 《Journal of Organic Chemistry》 被引量: 0发表: 2008年 加载更多 来源期刊 ChemInform 研究点推荐 Al(OTf)3 Direct Nucleophilic Substitution Propargylic Alcohols 站内活动 0...
In particular, NMR spectroscopy shows a great potential for following the fate of molecular precursors, notably organic linkers comprising NMR-active spin I = 1/2 nuclei such as 1H and 13C. For the linker concentration, typical for MOF synthesis (about 0.1 M), the time resolution ...
Approximately 700 samples from five slate, three marble and five quartzite units have been analysed for 26 elements to determine the use of geochemistry in stratigraphic correlation. Statistical treatment of the data has established that for all the slates and marbles, and certain of the quartzites,...
A theoretical approach to substituent effects : Interaction between directly bonded groups in the isoelectronic series XNH 3 + , XCH 3 , and XBH 3 Ab initio molecular orbital theory including full geometry optimization at the 4-31G level is used to examine the interactions between substitutents ...
Ray L. Sweany, in Comprehensive Organometallic Chemistry II, 1995 1.3.2.3.(i).(a) Structures and nomenclature of the equatorial ring The structures of coenzyme B12 and related complexes are shown in Figures 1 and 2. Several variants of the coenzyme have been extensively studied. The complexity...
in Functional Foods and Their Impact on HealthActive Pharmaceutical IngredientsAdenosine Receptor Antagonists: Design, Synthesis and Biochemical AnalysesAdvance in Gas Hydrates: Formation, Structures, Properties and ApplicationsAdvances in Biodegradable PolymersAdvances in Carbohydrate Chemistry 2012Advances in ...
Graduation Program in Biotechnology, Federal University of Pará, Augusto Corrêa Street, Guamá, Belém-PA 66075-110, Brazil 5 Department of Organic Chemistry, Universidad de Córdoba, Ctra Nnal IV-A, Km 396, E14014 Cordoba, Spain * Author to whom correspondence should be addressed. Materials...