Results 51 to 60 of about 1,611 (154)

3-Methyl-2-((methylthio)methyl)but-2-enal

open access: yesMolbank
During the Swern oxidation of 3-methylbut-3-en-1-ol, an unexpected C-C bond formation product, 3-methyl-2-(methylthio)but-2-enal, was obtained. Its structure was characterized using 1H-NMR, 13C-NMR, and HRMS.
Huaxuan Zhang, Xingang Xie
doaj   +1 more source

Recent Advances in Intramolecular C─N Bond Formation for Pyrrolidine Synthesis

open access: yesChemistryOpen, Volume 15, Issue 6, June 2026.
This review highlights synthetic advances (2013–2025) in intramolecular C─N bond formation for constructing the pharmaceutically relevant pyrrolidine core. The review is organized into five methodological clusters: 1) intramolecular alkene/alkyne amination; 2) tandem annulations, which involve C─N bond formation as the key step; 3) nucleophilic ...
Rasma Kroņkalne, Māris Turks
wiley   +1 more source

Allylation of aldehydes with various allylation agents

open access: yesResults in Chemistry
Allylation of aldehydes is one of the most important organic transformations that helps in the synthesis of compounds with special skeletons with unique medicinal properties.
Yavar Ahmadi
doaj   +1 more source

Efficient, highly diastereoselective MS 4 Å-promoted one-pot, three-component synthesis of 2,6-disubstituted-4-tosyloxytetrahydropyrans via Prins cyclization

open access: yesBeilstein Journal of Organic Chemistry, 2012
A simple, efficient and highly diastereoselective one-pot three-component synthesis of functionalized 2,6-disubstituted-4-tosyloxytetrahydropyrans was performed.
Naseem Ahmed, Naveen Kumar Konduru
doaj   +1 more source

Advances in the Different Synthetic Routes of Fluorinated Hydrazines

open access: yesThe Chemical Record, Volume 26, Issue 6, June 2026.
This review highlights the various routes to the preparation of fluorinated hydrazines, thereby promoting the exploration of innovative methods for the synthesis of new N‐fluorinated hydrazines. Their synthesis mainly involves synthetic routes such as organometallic, organocatalytic, and photocatalytic.
Dimitra Kyrko, Benoît Crousse
wiley   +1 more source

Reductively Stable Platinum Catalyst Enabling Metallaphotoredox Reductive Allylation of Ketones, Aldehydes, and Imines

open access: yesChemistryEurope
This work demonstrates the catalytic reductive allylation of ketones, aldehydes, and imines using a synergistic platinum/photoredox catalyst system. Notably, this method is applicable even to acetophenone derivatives, affording homoallylic alcohols that ...
Junpei Shimosato   +5 more
doaj   +1 more source

Complementary Synthesis of Anti- and Syn-Hydroxymethyl 1,3-Diols via Regioselective Ring Opening of TIPS-Protected 2,3-Epoxy Alcohols: Toward Polypropionate Fragments

open access: yesOrganics
Hydroxymethyl 1,3-diol motifs are common structural motifs in natural products, particularly in polypropionates with important therapeutic potential.
Raúl R. Rodríguez-Berríos   +1 more
doaj   +1 more source

Preparation of aromatic geraniol analogues via a Cu(I)-mediated Grignard coupling

open access: yesJournal of the Brazilian Chemical Society, 2003
Difunctional allylic terpenes are important synthetic building blocks. Functionalization of protected geranyl derivatives by SeO2/t-BuO2H adsorbed on SiO2 provides a convenient route to such compounds.
Paz J. Luis, Rodrigues J. Augusto R.
doaj  

Base-Promoted C-C Bond Activation Enables Radical Allylation with Homoallylic Alcohols. [PDF]

open access: yesJ Am Chem Soc, 2020
Lübbesmeyer M   +5 more
europepmc   +1 more source

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