Results 261 to 270 of about 119,767 (324)

Workflow for Harmonic IR and Raman Spectra of Embedded Systems: The PE-QM Approach. [PDF]

J Phys Chem A
Vester J, Carrasco-Busturia D, Ruud K, Ringholm M, Olsen JMH.   +4 more
europepmc   +1 more source

Synthesis of a Functionalized Bicyclo[3.2.1]Octane: A Common Subunit to Kauranes, Grayananes, and Gibberellanes

Chemistry – A European Journal, EarlyView.
A detailed account on the synthesis of a bicyclo[3.2.1]octane scaffold, common to the kaurane, grayanane, and gibberellane diterpenoid families, is reported. Our original strategy relying on a 1,4‐sila‐Prins cyclization proved unsuccessful. Learning from that, we designed an alternative strategy relying on ring‐closing metathesis (RCM), which ...
Nicolas Fay, Camil Benbouziyane, Cyrille Kouklovsky, Aurélien de la Torre   +3 more
wiley   +1 more source

Supercycloalkanes: dihydropyrazine-embedded macrocycles with flexible conformations resembling cycloalkanes. [PDF]

Chem Sci
Qiu S, Zhang L, Qu DH, Wang Z.
europepmc   +1 more source

Synthesis of Cyclobutane‐Containing Tricyclic β‐Lactams Based on a Saturated Scaffold Enabled by Iron‐catalysed [2 + 2]‐Cycloaddition

Chemistry – A European Journal, EarlyView.
First syntheses of pyrrolidine‐, piperidine‐, and azepane tricyclic β‐lactams based on a saturated scaffold are achieved through an Fe‐pyrimidinediimine‐catalysed [2 + 2] cycloaddition of allylamines analogues followed by photo‐induced intramolecular C─H insertion.
Lea Freitag, Johannes Zeh, Levi A. Ziegenhagen, Felix J. Becker, Dragoș‐Adrian Roșca   +4 more
wiley   +1 more source

Fabrication of bimetallic RuCu/HAP catalysts for the selective synthesis of C₁₁ biofuel precursors from biomass-based 5-methylfurfural. [PDF]

RSC Adv
Ku C, Tang J, Li X, Liu Z, Yang W.
europepmc   +1 more source

London Dispersion versus Intramolecular Hydrogen Bond in Bis‐Pyridines: How Accurate Is DFT for Competing Noncovalent Interactions in the Condensed Phase?

Chemistry – A European Journal, EarlyView.
A test system of 14 singly protonated bis‑pyridine salts, with varying H‑bonded and London dispersion interactions, was designed to systematically study non‑covalent interactions across the gas, solution, and solid phases. A good correlation between the 1H chemical shift and the N‐H–N angle from the crystal structures was established.
Adélaïde Savoy, Vladimir Gorbachev, Charlotte N. Stindt, Peter Chen   +3 more
wiley   +1 more source

Estimating strongly wetting to non‐wetting contact angles for pure and mixed liquids on solids by considering film pressure

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract In solid–liquid–vapour systems, the effect of film pressure (πe$$ {\pi}_e $$) by vapour adsorbate molecules becomes significant when the solid surface energy is similar to or larger than that of the liquid. We extend Young equation applicability to estimate contact angles of pure and mixed liquids on smooth solids by including πe$$ {\pi}_e $$,
Aliakbar Roosta, Nima Rezaei
wiley   +1 more source

Impact of Induced Fitting and Secondary Noncovalent Interactions on Site-Selective and Enantioselective C-H Functionalization of Arylcyclohexanes. [PDF]

J Am Chem Soc
Ly D, Boni YT, Korvorapun K, Derdau V, Bacsa J, Musaev DG, Davies HML.   +6 more
europepmc   +1 more source

Investigation of microalgal tolerance and growth in simulated tailings pond water containing naphthenic acids

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Oil sands tailings ponds, such as those in northeastern Alberta, present environmental challenges due to slow sedimentation, water entrapment, and toxic naphthenic acids (NAs), which hinder water reclamation. This study assessed the tolerance and biodegradation potential of Chlorella vulgaris (C.
Amin Kalbasi, Amarjeet Bassi
wiley   +1 more source