42006-99-5Relevant articles and documents
The structural and dynamic properties of 1-bromodecane in urea inclusion compounds investigated by solid-state 1H, 13C and 2H NMR spectroscopy
Yang, Xiaorong,Mueller, Klaus
, p. 514 - 522 (2011)
For asymmetric guest molecules in urea, the end-groups of two adjacent guest molecules may arrange in three different ways: head-head, head-tail and tail-tail. Solid-state 1H and 13C NMR spectroscopy is used to study the structural properties of 1-bromodecane in urea. It is found that the end groups of the guest molecules are randomly arranged. The dynamic characteristics of 1-bromodecane in urea inclusion compounds are probed by variable-temperature solid-state 2H NMR spectroscopy (line shapes, spin-spin relaxation: T2, spin-lattice relaxation: T1Z and T1Q) between 120 K and room temperature. The comparison between the simulation and experimental data shows that the dynamic properties of the guest molecules can be described in a quantitative way using a non-degenerate three-site jump process in the low-temperature phase and a degenerate three-site jump in the high-temperature phase, in combination with the small-angle wobbling motion. The kinetic parameters can be derived from the simulation. Copyright
Pentafluorophenyl Esters: Highly Chemoselective Ketyl Precursors for the Synthesis of α,α-Dideuterio Alcohols Using SmI2 and D2O as a Deuterium Source
Li, Hengzhao,Hou, Yuxia,Liu, Chengwei,Lai, Zemin,Ning, Lei,Szostak, Roman,Szostak, Michal,An, Jie
supporting information, p. 1249 - 1253 (2020/01/31)
We report the first highly chemoselective synthesis of α,α-dideuterio alcohols with exquisite incorporation of deuterium (>98% [D2]) using pentafluorophenyl esters as ketyl radical precursors, SmI2 as a mild reducing agent, and Dsub
Experimental and computational study of a direct O2-coupled wacker oxidation: Water dependence in the absence of Cu salts
Anderson, Brian J.,Keith, John A.,Sigman, Matthew S.
supporting information; experimental part, p. 11872 - 11874 (2010/10/21)
The kinetics of the Pd[(-)-sparteine]Cl2 catalyzed oxidation of decene using oxygen as the sole oxidant have been studied in the absence of copper salts and high [Cl-]. Saturation kinetics are observed for [decene] as well as a third order dependence on [water]. A mechanism is proposed involving the dissociation of two chlorides and rate-limiting formation of a three-water hydrogen bridged network and subsequent oxypalladation as supported by computational studies.