2-Benzylindenes (1, la ) are hydrogenated to 2-benzylindanes (2) using tris-(triphenylphosphine)-rhodium(I)-chloride in benzene by a strict cis-1,2 addition of hydrogen to the double bond. Thus, stereoand regio-specific deuterium labelling at the five-membered ring of various 2-benzylindanes has been carried out. The high selectivity of deuterium incorporation is shown independently by 'H NM R ...

ISIDORE S. EDELMAN, M.D. TO DATE, deuterium oxide (D20) has been the most satisfactory and accurate tracer substance for body water: its diffusion characteristics have been thoroughly studied, and its reliability as a tracer for body water by the dilution technic has been established.' 2 However, the technical difficulty of deuterium analysis by the falling drop method and the labor and expense...

Flow chemistry-based syntheses of deuterium-labeled analogs of important antidiabetic chalcones were achieved via highly controlled partial C≡C bond deuteration of the corresponding 1,3-diphenylalkynones. The benefits of a scalable continuous process in combination with on-demand electrolytic D2 gas generation were exploited to suppress undesired over-reactions and to maximize reaction rates si...

We have studied the surface coverage dependence of the co-adsorption of D and D(2)O on the Ni(111) surface under UHV conditions. We use detailed temperature-programmed desorption studies and high resolution electron energy loss spectroscopy to show how pre-covering the surface with various amounts of D affects adsorption and desorption of D(2)O. Our results show that the effects of co-adsorptio...

The retention of hydrogen isotopes in tungsten co-deposited layers is a subject severely understudied the literature compared to isotope implantation bulk specimens. However, impurity seeding future next-generation fusion devices can reduce sputtering threshold and potentially increase contribution global tritium problem. This paper reports on development fusion-relevant tungsten-deuterium nitr...