Results 81 to 90 of about 33,209 (285)

Stereoselective Synthesis of Cannabidiol and its Unnatural Enantiomer to Evaluate Anxiolytic‐Like Properties and Memory Interactions

ChemBioChem, EarlyView.
Both (−)‐ and (+)‐cannabidiol (CBD and ent‐CBD, respectively) are synthesized via a highly diastereoselective CSA‐catalyzed Friedel–Crafts reaction. ent‐CBD exhibits anxiolytic‐like effects in aged male mice without impairing long‐term memory formation.
Marcos Accioly Jr, Kawana Rosa, Andressa G. Soliani, Suzete M. Cerutti, Cristiano Raminelli   +4 more
wiley   +1 more source

Supported Single‐Atom Manganese Catalysts for the Trimerization of Ethylene

ChemCatChem, EarlyView.
We explore Mn‐catalyzed ethylene oligomerization via oxidative cyclization. Density functional theory (DFT) predicts Mn/LiTiO₂ exhibits enhanced catalytic performance due to electronic modulation, which experimental validation confirms with higher conversion and hexene selectivity.
Yu Lim Kim, Uddhav Kanbur, Jiayi Xu, Jacklyn N. Hall, Carly Byron, Jens Niklas, Oleg G. Poluektov, Massimiliano Delferro, David M. Kaphan, Cong Liu   +9 more
wiley   +1 more source

Analisis Kualitatif dan Kuantitatif Minyak Atsiri Dari Bunga Kamboja Putih (Plumeria acuminata W.T.Ait.) dan Bunga Kamboja Merah (Plumeria rubra L.) [PDF]

, 2010
Telah dilakukan penelitian untuk menganalisis secara kualitatif dan kuantitatif minyak atsiri bunga kamboja putih (Plumeria acuminata W.T.Ait.) dan bunga kamboja merah (Plumeria rubra L.).
Phang, Devi Vionita
core  

Group I tert‐Amylates: A Comparative Study in Hydrophosphination Reactions

ChemCatChem, EarlyView.
A comparative study of group I tert‐amylate precatalysts for hydrophosphination demonstrates increasing reactivity down the group to the first examples of rubidium and cesium in this reaction. Catalytic activity with lighter and more abundant elements, typified by potassium, can be enhanced with a crown ether, demonstrating the importance of ion ...
Diego R. Javier‐Jiménez, Matthew B. Reuter, Emma J. Finfer, Gavin A. Sicard, Rory Waterman   +4 more
wiley   +1 more source

Highly efficient separation of actinides from lanthanides by a phenanthroline-derived bis-triazine ligand [PDF]

, 2011
The synthesis, lanthanide complexation, and solvent ex- traction of actinide(III) and lanthanide(III) radiotracers from nitric acid solutions by a phenanthroline-derived quadridentate bis-triazine ligand are described. The ligand separates Am(III) and Cm(
Accorsi G., Ackerman J. J. H., Alexander V., Andreas Wilden, Anet F. A. L., Banik N. L., Baumgärtner F., Baumgärtner F., Benay G., Benay G., Bencini A., Berthet J.- C., Berthet J.-C., Berthet J.-C., Berthet J.-C., Berthet J.-C., Boucher C., Bremner D. H., Bremner D. H., Brinck T., Chandler C. J., Choppin G. R., Choppin G. R., Clore G. M., Cockrell G. M., Coffman D. D., Colette S., Colette S., Colette S., Cordier P. Y., Cumper C. W. N., Dam H. H., Denecke M. A., Desreux J. F., Desreux J. F., Donnay G., Drew M. G. B., Drew M. G. B., Drew M. G. B., Drew M. G. B., Ekberg C., Ekberg C., Fermvik A., Foreman M. R. S., Frank W. Lewis, Gaunt A. J., Geist A., Geoffrey Vidick, Giuseppe Modolo, Grycova L., Hagström I., Hubscher-Bruder V., Hudson M. J., Ibarzo J., Inagaki F., Ionova G., Iveson P. B., Jean F. Desreux, Jean-Pierre Simonin, Jones P., Keizers P. H. J., Kikuchi K., Kolarik Z., Laurence M. Harwood, Lecomte du Noüy P., Lewis F. W., Madic C., Magill J., Magnusson D., Magnusson D., Mathur J. N., McKibben J. M., Michael G. B. Drew, Michael J. Hudson, Michal Sypula, Nilsson M., Nilsson M., Nilsson M., Nouri Bouslimani, Ranganathan R. S., Sammes P. G., Serrano-Purroy D., Simonin J.-P., Simonin J.-P., Simonin J.-P., Sood D. D., Spirlet M. R., Steppert M., Trong-Hung Vu, Trumm S., Yildirim Erbil H., Zong R.   +91 more
core   +1 more source

Highly Acyclic Selective Cobalt Catalysts for Butadiene Dimerization

ChemCatChem, EarlyView.
A series of 11 cobalt(II) complexes were prepared and optimised for the linear selective dimerisation of butadiene to give 5‐methyl‐1,3,6‐heptatriene as the major product. The catalysts operated under mild reaction conditions, gave good reactivity and did not require the use of organometallic activators.
Joseph H. P. Cockcroft, Gary S. Nichol, Jarle Holt, Joost Smit, Jennifer A. Garden, Stephen P. Thomas   +5 more
wiley   +1 more source

Propan-2-yl r-4-(4-fluorophenyl)-3-hydroxy-c-6-methyl-2-phenyl-4,5-dihydro-2H-indazole-t-5-carboxylate

Acta Crystallographica Section E, 2012
In the title compound, C24H23FN2O3, the cyclohexene ring adopts a screw-boat conformation. The fluorobenzene ring attached to the cyclohexene ring and the phenyl ring attached to the indazole moiety are inclined to one another by 57.77 (13)&
S. Rizwana Begum, R. Hema, K. Pandiarajan, Sridhar Balasubramanian, A. G. Anitha   +4 more
doaj   +1 more source

Recent progress in the synthesis of six-membered aminocyclitols (2008-2017) [PDF]

, 2018
Aminocyclitols are of interest as glucosidase inhibitors, as probes for the study of pseudoglycosyltransferases, and as potential therapeutics for the treatment of Gaucher’s disease.
Donaldson, William
core   +1 more source

Performance of the ALOGPS 2.1 program for octanol-water partition coefficient prediction with organic chemicals on the Canadian Domestic Substances List [PDF]

, 2010
The KOWWIN and ALOGPS octanol-water partition coefficient (K~ow~) estimation software programs were compared for their capacity to accurately predict log K~ow~ values of 1545 organic compounds on the publicly available Domestic Substances List (DSL) from
Kaya Forest, Sierra Rayne
core   +2 more sources

Development of an Efficient Stereoretentive Para‐Claisen‐Cope Rearrangement

ChemistryEurope, EarlyView.
The stereoretentive para‐Claisen‐Cope rearrangement enabled by Europium catalysis is presented, achieving precise phenol functionalization with exceptional chirality transfer under air‐ and moisture‐tolerant conditions. A novel carbonate unlocks superior enantioselectivity in the Tsuji‐Trost allylic alkylation, paving the way for highly enantioenriched
Johanna Breinsperger, Maximilian Kaiser, Nicolas Kratena, Peter Gärtner   +3 more
wiley   +1 more source