Synonyms:Deuterium;Deuterons;Hydrogen 2;Hydrogen-2
99%, *data from raw suppliers
D-2- *data from reagent suppliers
There total 3 articles about Deuterium which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:
Reference yield: 70.0%
Reference yield:
Reference yield:
The research focuses on the chemical synthesis, crystal structure determination, and enzymatic evaluation of a dinucleotide spore photoproduct (SP) analogue, specifically 5R-CH2SP, which contains a formacetal linker instead of a phosphate group. The study aims to understand the biochemistry of SP, a unique DNA photoproduct found in bacterial endospores that are resistant to UV radiation. The experiments involved a 15-step chemical synthesis to prepare the dinucleotide SP isostere 5R-CH2SP, which was then subjected to crystallization, X-ray diffraction, and enzymatic studies. Deuterium (D) was used for selectively labeling a dinucleotide TpT to track deuterium migration during the photoreaction, which aids in understanding the mechanistic aspects of SP formation. The researchers used techniques such as ROESY spectroscopy, DFT computational studies, and enzymatic assays with spore photoproduct lyase (SPL) to evaluate the structural and functional similarity between 5R-CH2SP and the naturally occurring 5R-SP. The analyses confirmed that 5R-CH2SP possesses properties similar to 5R-SP, providing valuable insights into the mechanism of SP formation and repair.
The research focuses on the investigation of large intrinsic nuclear magnetic resonance (NMR) isotope shifts associated with bending motion along the bridging coordinate in carbocations. The purpose of this study was to determine the deuterium isotope effects on the 13C NMR chemical shifts for specific tertiary carbocations, namely 2-methyl-2-bicyclo[2.2.2]octyl and 2-methyl-2-bicyclo[2.2.1]heptyl cations. The researchers found that these carbocations exhibited isotope shifts larger than 1 ppm per deuterium, which is significantly larger than the shifts found in nonionic model compounds and other carbocations. The results suggest the presence of a shallow potential surface for the bending motion associated with u-bridging, indicating that the magnitude of the isotope effect is not proportional to the extent of bridging.
The study presents a versatile electro-reductive system for hydrodefunctionalization under ambient conditions, using triethylamine (Et3N) as a sacrificial reductant. This system allows for the cleavage of various bonds, including C–halogen, N–S, N–C, O–S, O–C, C–C, and C–N bonds. The reduction selectivity can be conveniently switched by incorporating or removing an alcohol as a co-solvent. The study explores the optimal conditions for the selective electrochemical reduction using 9-bromophenanthrene as a model substrate. It demonstrates the scope of the system with various bromides, iodides, chlorides, and other functional groups, showing good to excellent yields. Deuterium labeling experiments indicate that the solvent is the major hydrogen source in the reduction process. The study concludes that this electrochemical system is operationally simple, sustainable, and of considerable synthetic value in green chemistry.
The research investigates the hydrogenolysis of alkyl zirconocene compounds, focusing on the differences in reaction rates and mechanisms between bridged and unbridged derivatives. The study utilized various zirconocene derivatives, including (C5(CH3)5)2Zr(X)CH2C(CH3)3 (where X = F, Cl, Br) and their ethylene-bridged counterparts C5H4(C5(CH3)5)Zr(X)CH2C(CH3)3. It was found that the hydrogenolysis rate of the alkyl halides was significantly reduced when the ring ligands were interconnected by an ethylene bridge, while the alkyl hydrides reacted too quickly for kinetic measurements at room temperature. The research suggests that hydrogenolysis of alkyl halides proceeds via an indirect ring-mediated hydrogen transfer reaction, which is only feasible with freely rotating ring ligands, whereas alkyl hydrides undergo direct hydrogen transfer without such limitations. The study also observed an inverse kinetic isotope effect for reactions with D2, indicating the involvement of a complex reaction mechanism. The chemicals that played a crucial role in this research include various zirconocene derivatives with different substituents (fluoride, chloride, bromide, and hydride), molecular hydrogen (H2), deuterium (D2), and neopentyl-lithium for the preparation of mono-neopentyl mono-halide derivatives.
The research investigates the enantioselective hydrosilylation of styrene derivatives using palladium complexes with various chiral monophosphine ligands derived from 1,1′-binaphthyl axial chirality. The primary goal is to enhance the enantioselectivity of the reaction by modifying the ligands and to elucidate the underlying mechanisms. The study found that the ligand (R)-2-bis[3,5-bis(trifluoromethyl)phenyl]phosphino-1,1′-binaphthyl (2g) achieved the highest enantioselectivity, yielding (S)-1-phenylethanol with 98% enantiomeric excess (ee) after oxidation of the hydrosilylation product. This ligand also efficiently catalyzed the asymmetric hydrosilylation of substituted styrenes, producing chiral benzylic alcohols with over 96% ee. Mechanistic studies, including deuterium-labeling experiments, revealed that the fast β-hydrogen elimination from the alkylpalladium intermediate, compared to reductive elimination, is crucial for the high enantioselectivity observed with ligand 2g. The research concludes that the electronic and steric properties of the ligand significantly influence the reaction's enantioselectivity and catalytic activity, providing valuable insights for further ligand design and optimization in asymmetric catalysis.
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