Zinc

Knöchel, Paul; Grenouillat, Nathalie

doi:10.1002/047084289x.rz001.pub2

Cited by 5 publications

(7 citation statements)

References 324 publications

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“…For example, product 5 , obtained from the reaction of 1,3‐dibromopropane, possesses a bromine atom that can be subjected to various nucleophilic substitution reactions. Carbon‐carbon double and triple bonds are versatile structural features which allow for a number of different transformations . Thus, various alkyl bromides bearing unsaturated carbon‐carbon bonds were subjected to the reaction conditions.…”

Section: Resultsmentioning

confidence: 99%

Metal‐Free Thiolation of Imidazopyridines with Functionalized Haloalkanes Using Elemental Sulfur

et al. 2018

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Section: Resultsmentioning

confidence: 99%

Metal‐Free Thiolation of Imidazopyridines with Functionalized Haloalkanes Using Elemental Sulfur

et al. 2018

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“…to single ν Ri production at the LHC. Finally we did not address the effects of the new neutrino degress of freedom on big-bang nucleosynthesis [7] and the phenomenology of baryon number violation and proton decay [8] in the present scenario. These and other phenomenological consequences will be discussed elsewhere.…”

Section: Discussionmentioning

confidence: 99%

“…2. Consequently the neutrino Majorana mass matrix entries (8) are even more strongly suppressed as the Dirac masses discussed above.…”

Section: We Assume Amentioning

confidence: 91%

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Lepton number violation in theories with a large number of standard model copies

2011

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We examine lepton number violation (LNV) in theories with a saturated black hole bound on a large number of species. Such theories have been advocated recently as a possible solution to the hierarchy problem and an explanation of the smallness of neutrino masses. The violation of lepton number can be a potential phenomenological problem of this N -copy extension of the Standard Model as due to the low quantum gravity scale black holes may induce TeV scale LNV operators generating unacceptably large rates of LNV processes. We show, however, that this does not happen in this scenario due to a specific compensation mechanism between contributions of different Majorana neutrino states to these processes. As a result rates of LNV processes are extremely small and far beyond experimental reach, at least for the left-handed neutrino states.

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“…Because of the more covalent character of the C–Zn bond, in contrast to C–Mg and C–Li, the reactivity of the organometallic reagent is significantly reduced, and the selectivity is increased at the same time. These expectations are underlined by many examples for the formation of C–C bonds in organometallic chemistry, e.g., cross-coupling reactions. − …”

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confidence: 96%

The Formation of P–C Bonds Utilizing Organozinc Reagents for the Synthesis of Aryl- and Heteroaryl-Dichlorophosphines

et al. 2021

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Aryl- and heteroaryl-dichlorophosphines are mildly and selectively made in a one-pot synthesis in moderate to good yields starting from the respective aryl bromides or five-membered heterocycles, following lithiation with nBuLi, transmetalation with ZnCl2, and subsequently the reaction with PCl3. Selected aryl- and heteroaryl-dichlorophosphines were successfully synthesized using this reaction method and could easily be purified after isolation. The intermediate formation of the organozinc species is essential, as it prevents the formation of multiple substitution products. Important are also the reaction conditions: the usage of the proper solvent for the respective aromatic precursors and removal of the remaining salts by addition of a dioxane/pentane mixture. Depending on the solvent and steric demand of the substituent, mono- and bis-substitution products can be formed but formation also prevented. Hereby, different organozinc species might play an important role.

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Zinc

Cited by 5 publications

References 324 publications

Metal‐Free Thiolation of Imidazopyridines with Functionalized Haloalkanes Using Elemental Sulfur

Metal‐Free Thiolation of Imidazopyridines with Functionalized Haloalkanes Using Elemental Sulfur

Lepton number violation in theories with a large number of standard model copies

The Formation of P–C Bonds Utilizing Organozinc Reagents for the Synthesis of Aryl- and Heteroaryl-Dichlorophosphines

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