• 原料直供
• 试剂商城
• 直接询价

分类

• {uni_hamburg} no charge; nitrogen heterocycle; carbocycle; aromatic; large ring; fused rings; 5ring; 6ring; 9ring; amide; lactame; 1fragment
• {SNA} Building Blocks, Chemical Synthesis, Organic Building Blocks, Selenium Compounds

相关文献及参考

• Short: III/35G Title: Nuclear Magnetic Resonance (NMR) Data: Chemical Shifts for Selenium-77 Author: Duddeck, H. Editor: Gupta, R.R.; Lechner, M.D. Source: Landolt-Börnstein, New Series Volume: III/35G Year: 2004 Keyword: chemical shift; coupling constant; molecular structure ISBN: 3-540-21434-8 ISBN: 978-3-540-21434-2 Internet Resource: DOI:10.1007/b79070 RefComment: VII, 308 pages. With CD-ROM., Hardcover RefComment: Written for scienctists and engineers in the fields of physics, chemistry and physical chemistry who inted to use NMR to study the structure and the binding of molecules Abstract: NMR is now the leading technique and a powerful tool for the investigation of the structure and interaction of molecules. The present Landolt-Börnstein vol.III/35 "Nuclear Magnetic Resonance (NMR) Data" is therefore of major interest to all scientists and engineers who intend to use NMR to study the structure and the binding of molecules. Vol. III/35 "NMR-DATA" is divided into several subvol.and parts. III/35 A contains the nuclei 11B and 31 P, III/35 B contains the nuclei 19F and 15 N, III/35 C contains the nucleus 1H, III/35 D contains the nucleus 13C, III/35 E contains the nucleus 17O, and subvolume III/35G contains the nucleus 77Se.
• Reagent for the oxy-selenation of alkenes in the presence of 2-3 equivalents of water and an acid catalyst: J. Am. Chem. Soc., 101, 3704 (1979). The trans-ß-hydroxy selenide products are useful intermediates, e.g. in the synthesis of allylic alcohols by selenoxide elimination. In general, the reagent is superior to the corresponding halides in intramolecular cyclization reactions with unsaturated acids, urethanes, etc. Even suitably disposed ketones may undergo cyclization of the enol form, in the presence of SnCl4: J. Chem. Soc., Chem. Commun., 1251, 1252 (1982):

安全信息