Results 11 to 20 of about 62,467 (179)

Experimental and Computational Study of β-H Transfer between Cobalt(I) Alkyl Complexes and 1-Alkenes

open access: yes, 2018
Bis(imino)pyridine cobalt(I) alkyl complexes react with 1-alkenes by β-hydrogen transfer, providing a model reaction for the study of a commonly encountered chain transfer process in polymerization and oligomerization catalysis.
Vernon C. Gibson (2329558)   +3 more
core   +38 more sources

Hydroxyl-Diazomethylation of Alkenes via Photoredox Catalysis [PDF]

open access: yes, 2023
α-Diazoesters belong to significantly important carbenoid precursors in synthetic chemistry, diazomethylation-based difunctionalization of alkenes is highly valuable but remain nontrivial. Herein, we reported a general and modular approach for the direct
Haisheng, Xie   +7 more
core   +1 more source

Triazenolysis of Alkenes: Aza-version of Ozonolysis [PDF]

open access: yes, 2023
Numerous applications of alkenes exist due to their abundance and versatility in chemical transformations. In this study, we present a unique and novel chemical transformation of alkenes, the aza-version of canonical ozonolysis reaction, which we termed ...
Alexander, Kaushansky   +4 more
core   +2 more sources

Stereoselective Boron-Masking of polyBorylated-Alkenes: An Access to Stereodefined polyMetalloid Alkenes [PDF]

open access: yes, 2022
Polyborylated-alkenes are valuable reagents in modern organic synthesis, providing access to a wide array of transformations, including the construction of multiple C–C and C–heteroatom bonds.
Nicole, Hanania   +2 more
core   +1 more source

Alkene-oxo and alkene-alkene coupling on Pt(II) [PDF]

open access: yes, 2021
Tetranuclear Pt(II) oxo-complex [(COD)4Pt4([mu]3-O)2Cl2](BF4)2 (1) (COD = 1,5- cyclooctadiene) was found to readily react with a variety of alkenes (ethylene, norbornene, propylene and cyclopentene). The most significant discovery resulted from the norbornene reaction, which gave platinaoxetane [(COD)2Pt2(OC7H10)Cl]BF4 (4), the first metallaoxetane ...
openaire   +2 more sources

Iodoaminations of Alkenes [PDF]

open access: yesSynthesis, 2016
The activation of alkenes and their subsequent functionalization is a frequently used methodology in synthetic chemistry. This review highlights recent iodine-mediated aminations and elaborates on the various strategies to bring about regio- or stereoselective transformations.
Wirth, Thomas, Mizar, Pushpak
openaire   +2 more sources

Photocatalytic Hydroalkylation of Aryl-Alkenes

open access: yes, 2022
Here, we present a visible light-catalyzed hydroalkylation of aryl-alkenes affording C–C bonds using aryl-alkenes and alkyl iodides. We demonstrate the formation of various hydroalkylation products in excellent yields, with primary, secondary, and ...
Michael Schnürch (1281255)   +2 more
core   +1 more source

Cobalt-catalyzed nucleophilic addition of the allylic C(sp3)–H bond of simple alkenes to ketones

open access: yesBeilstein Journal of Organic Chemistry, 2018
We herein describe a cobalt/Xantphos-catalyzed regioselective addition of simple alkenes to acetophenone derivatives, affording branched homoallylic alcohols in high yields with perfect branch selectivities.
Tsuyoshi Mita   +3 more
doaj   +1 more source

Palladium-Catalyzed N-Alkenylation of N-Aryl Phosphoramidates with Alkenes

open access: yesMolecules, 2023
Versatile and concise Pd-catalyzed oxidative N-alkenylation of N-aryl phosphoramidates with alkenes is described in this study, a reaction that is of great significance but surprisingly unexploited.
Yu-An Li, Ge Wu, Jia Li
doaj   +1 more source

Hydrogenations without Hydrogen: Titania Photocatalyzed Reductions of Maleimides and Aldehydes [PDF]

open access: yes, 2014
A mild procedure for the reduction of electron-deficient alkenes and carbonyl compounds is described. UVA irradiations of substituted maleimides with dispersions of titania (Aeroxide P25) in methanol/acetonitrile (1:9) solvent under dry anoxic conditions
John C. Walton   +9 more
core   +1 more source

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