Synthesis and spectroscopic properties of isomeric trideuterio- and tetradeuterio pyridines
作者:James W. Pavlik、Somchoke Laohhasurayotin
DOI:10.1002/jhet.5570440637
日期:2007.11
The syntheses of the six possible isomeric trideuteriopyridines and the three possible isomeric tetradeuteriopyridines are described. These deuteriopyridines were characterized by their mass and NMR spectra.
The Vapor-Phase Phototransposition Chemistry of Pyridine: Deuterium Labeling Studies
作者:James W. Pavlik、Somchoke Laohhasurayotin
DOI:10.1021/jo7026799
日期:2008.4.1
The six isomeric trideuteriopyridines and the three isomeric tetradeuteriopyridines undergo phototransposition upon S0 → S2 (π, π*) excitation in the vapor phase at 254 nm. On the basis of the products formed, the six trideuteriopyridine isomers can be divided into two triads. Similarly, the three isomeric tetradeuteriopyridines also constitute a triad. Irradiation of any one member of each triad results
Werstiuk, Henry Nick; Ju, Chen, Canadian Journal of Chemistry, 1989, vol. 67, # 5, p. 5 - 10
作者:Werstiuk, Henry Nick、Ju, Chen
DOI:——
日期:——
WERSTIUK, NICK HENRY;JU, CHEN, CAN. J. CHEM., 67,(1989) N, C. 5-10
作者:WERSTIUK, NICK HENRY、JU, CHEN
DOI:——
日期:——
Ni(I)–X Complexes Bearing a Bulky α-Diimine Ligand: Synthesis, Structure, and Superior Catalytic Performance in the Hydrogen Isotope Exchange in Pharmaceuticals
作者:Cayetana Zarate、Haifeng Yang、Máté J. Bezdek、David Hesk、Paul J. Chirik
DOI:10.1021/jacs.9b00939
日期:2019.3.27
Br, I) complex as a nickel(I) derivative supported by a redox-neutral α-diimine chelate. The dimeric nickel hydride, [(ipcADI)Ni(μ2-H)]2, was prepared and characterized by X-ray diffraction; however, magnetic measurements and 1H NMR spectroscopy support monomer formation at ambient temperature in THF solution. This nickel hydride was used as a precatalyst for the hydrogen isotopeexchange (HIE) of
由庞大的 α-二亚胺螯合物 N, N'-bis(1 R,2 R,3 R,5 S) 支持的一系列 Ni-X (X = Cl, Br, I, H) 配合物的合成和光谱表征)-(-)-isopinocampheyl-2,3-butanediimine (ipcADI) 进行了描述。二亚胺负载的三配位镍 (I)-X 配合物已被提议作为许多催化转化的关键中间体,例如 CC 和 C-杂原子交叉偶联以及 CH 官能化,但迄今为止在合成方面仍然难以捉摸。结构、光谱、电化学和计算研究的组合被用来建立每个单体 [(ipcADI)NiX] (X = Cl, Br, I) 络合物的电子结构,作为由氧化还原支持的镍 (I) 衍生物。中性α-二亚胺螯合物。制备了二聚氢化镍,[(ipcADI)Ni(μ2-H)]2,并通过 X 射线衍射表征;然而,磁性测量和 1 H NMR 光谱支持在环境温度下在 THF 溶液中形成单体。这种氢化镍用作芳烃和药物中