Results 81 to 90 of about 9,019 (233)

1,1‐and 1,2‐Diborylalkenes: Preparation and Synthetic Applications

Advanced Synthesis &Catalysis, Volume 368, Issue 12, 17 June 2026.
In this review, we highlight recent advances in the synthesis and reactivity of 1,1‐diborylalkenes and 1,2‐diborylalkenes, along with various transformations leading to C‐C, C‐heteroatom, and multicomponent products. By providing a comprehensive and practical resource, this review aims to assist researchers in exploring the synthetic utility of 1,1 and
Jayaram Vankudoth, Maruti Mali, Fabienne Berrée   +2 more
wiley   +1 more source

A unique Pd-catalysed Heck arylation as a remote trigger for cyclopropane selective ring-opening

Nature Communications, 2017
Functionalizing multiple, distant sites across a molecule is a challenge. Here the authors report a remote functionalization strategy, whereby an initial Heck reaction leads to chain-walking of palladium across a molecule, ring-opening cyclopropanes ...
Sukhdev Singh, Jeffrey Bruffaerts, Alexandre Vasseur, Ilan Marek   +3 more
doaj   +1 more source

Iodine‐Mediated Electrochemical Diastereoselective Synthesis of Enaminones

ChemElectroChem, Volume 13, Issue 12, 17 June 2026.
This work describes an efficient electrochemical (EC) method for transforming thioamides into enaminones via reaction with organic diazo compounds. The electrochemical approach is cost‐effective, mild, and proceeds through the in situ electrochemical generation of a copper complex.
Ijaz Khan, Głowacki Michał P., Rybicka‐Jasińska Katarzyna   +2 more
wiley   +1 more source

Regioselective C3–H Alkylation of Imidazopyridines with Donor–Acceptor Cyclopropanes

, 2023
Alkylated imidazopyridines are crucial structures for medicinal chemistry. Here, an efficient method for the C3–H alkylation of imidazopyridines was devised.
Oguzhan Dalkilic, Ferruh Lafzi, Oguzhan Dalkilic (5575682), Ferruh Lafzi (7360532), Haydar Kilic, Ozge Turbedaroglu (16747023), Haydar Kilic (5478110), Ozge Turbedaroglu   +7 more
core   +1 more source

Borane catalysed ring opening and closing cascades of furans leading to silicon functionalized synthetic intermediates

Nature Communications, 2016
Furans are attractive staring materials in organic chemistry, due to the ease of functionalisation and sourcing from renewable feedstocks. Here the authors show the ring opening of furans to silane intermediates, followed by further conversion to ...
Chinmoy K. Hazra, Narasimhulu Gandhamsetty, Sehoon Park, Sukbok Chang   +3 more
doaj   +1 more source

Asymmetric one-pot synthesis of cyclopropanes

Macedonian Journal of Chemistry and Chemical Engineering, 2016
Cycloaddition of the diazoalkanes to electron-deficient olefins (in situ) affords polysubstituted cyclopropanes in high yields (up to 85%). Deprotection of the ketal protecting group provided water-soluble cyclopropane-bearing carbohydrate in good yields.
Naoufel Ben Hamadi, Ahlem Guesmi, Wided Nouira   +2 more
doaj   +1 more source

A DFT Study on the Mechanism of Selective Formation of Substituted Azepines From 1‐Azabutadienes and Cyclopropanes

Chemistry – A European Journal, Volume 32, Issue 23, 16 June 2026.
The origin of the unusual regioselectivity in the Mg‐catalyzed cyclization of azadiene‐type imines with cyclopropanes is elucidated by DFT calculations. Although five‐membered rings are typically favored, energy decomposition analysis reveals that severe steric congestion induces a highly distorted transition state, rendering the five‐membered pathway ...
Ryo Kobayashi, Chao Wang, Shuto Kosuge, Yuji Matsuya, Kenji Sugimoto, Keiichi Hirano   +5 more
wiley   +1 more source

Donor-acceptor cyclopropanes in the synthesis of heterocyclic compounds [PDF]

, 2020
Cyclopropanes bearing donor and acceptor groups at the vicinal carbon atoms (donor-acceptor {DA} cyclopropanes) are promising building blocks for the synthesis of various heterocycles due to their excellent reactivity against diverse substrates and high ...
Trushkov, I. V., Ivanova, O. A.
core  

1,1‐Disubstituted Vinylbromides: Versatile Building Blocks for the Synthesis of Nitrogen‐Containing Heterocycles

European Journal of Organic Chemistry, Volume 29, Issue 23, 16 June 2026.
1,1‐Disubstituted vinylbromides are key intermediates for constructing nitrogen‐containing heterocycles. This review provides an overview of the synthetic applications of 1,1‐disubstituted vinylbromides and summarizes recent developments in reaction methodologies, mechanistic insights, and the structural diversity of N‐heterocyclic compounds accessible
Anne Westermeyer, Jun Fang, Chonghuo Liu, Guillaume Lefèvre, Gérard Guillamot, Phannarath Phansavath, Virginie Ratovelomanana‐Vidal   +6 more
wiley   +1 more source

Converting 1,1‐Bisborylalkanes into 1,2‐Bisborylalkanes Enabled by Iron Ligand‐to‐Metal Charge Transfer (LMCT) Photocatalysis

Angewandte Chemie, Volume 138, Issue 22, 25 May 2026.
1,2‐Bisborylalkanes are valuable intermediates for chemical synthesis as they could serve as a platform to generate value‐added products with two distinct functional groups at vicinal positions. A novel strategy to synthesize 1,2‐bisborylalkanes via Fe ligand‐to‐metal charge transfer (LMCT) photocatalysis is developed.
Zheye Zhang, George Chen, Michael Li, Carla Slebodnick, Diego Troya, Ming Chen   +5 more
wiley   +2 more sources