Results 101 to 110 of about 42,284 (289)

Zur Kenntniss der Terpene und der ätherischen Oele, Achtzehnte Abhandlung [PDF]

, 1892
O. Wallach
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Genome Mining Reveals a Novel Nephthenol‐Producing Diterpene Synthase from the Sandfly Lutzomyia Longipalpis

ChemBioChem, EarlyView.
The discovery of a terpene synthase of insect origin that makes the apparently cryptic product nephthenol from geranylgeranyl diphosphate sheds light on hidden biosynthetic potential. Populations of the sandfly, Lutzomyia longipalpis, use the diterpene sobralene as a sex/aggregation pheromone, which is likely produced in the insect through the activity
Charles Ducker, Catherine McKeown, Igor F. P. Da Silva, Isis Torres Souza, John A. Pickett, Antônio E. G. Santana, Neil J. Oldham   +6 more
wiley   +1 more source

XL.—Experiments on the synthesis of the terpenes. Part I. (Continued). Direct synthesis of terpin from ethyl cyclohexanone-4-carboxylate [PDF]

, 1907
Francis William Kay, W. H. Perkin
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Palladium‐Catalyzed Telomerization of Isoprene with Amines: Ligands and Solvents Working Together to Improve the Selectivity

ChemCatChem, EarlyView.
Palladium‐catalyzed telomerization of isoprene with diethylamine using non‐protic solvents and phosphite ligands with large cone angle afforded telomer 3 (T–T) in up to 90% yield and 90% selectivity. Phosphite ligands with small cone angle provided telomer 4 (H‐T) with selectivity of 43% (80% yield) and 48% (23% yield) with iPr2NH.
Jordi Colavida, Ricardo G. Penido, Ana Collado, Josep M. Ricart, Cyril Godard, Carmen Claver, Jorge J. Carbó, Eduardo N. dos Santos, Sergio Castillon   +8 more
wiley   +1 more source

XCVIII.—Studies of the terpenes and allied compounds. Nitrocamphor and its derivatives. I. Stereoisomeric chloro- and bromo-nitrocamphors. II. Pseudonitrocamphor. III. Camphoryloxime (camphonitrophenol) [PDF]

, 1898
Thomas Martin Lowry
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Rewriting Alkene Frameworks: A Practical Strategy for Nitrogen Incorporation

ChemistryEurope, EarlyView.
Morandi and team developed a metal‐free method to insert nitrogen into unactivated alkenes, forming amidines and nitriles via a transient aza‐allenium intermediate. Using mild, open‐flask conditions, the process delivers high yields and broad functional group tolerance.
Ranjini Laskar, Frank Glorius
wiley   +1 more source

Zur Kenntniss der Terpene und der ätherischen Oele. Ueber Isocarvoxim und die Constitution des Carvolins, nebst Bemerkungen über den Isomerisationsverlauf bei Oximen [PDF]

, 1906
O. Wallach
openalex   +1 more source

Chemometrics‐Assisted Electrochemical Device for Cannabidiol Detection in Real Cannabis sativa Samples

Chemistry–Methods, EarlyView.
GA: Four‐step process for cannabidiol (CBD) detection in Cannabis sativa extracts. (1) The plant extract is obtained. (2) An electrochemical sensor detects CBD using a screen‐printed electrode. (3) Electrochemical signatures of real samples are recorded, showing current vs. potential curves.
Wanda Cimmino, Ada Raucci, Antonella Miglione, Ciro Ascione, Ernesto Gargiulo, Nunzio Fiorentino, Serena Detti, Claudio D’Alfonso, Chiara Nieri, Sabino Napoletano, Antonietta Lombardozzi, Ibrahim A. Darwish, Giuseppina Chianese, Stefano Cinti   +13 more
wiley   +1 more source

Zur Kenntniss der Terpene und der ätherischen Oele; Ueber die Umwandlung cyklischer Ketone in Alkamine und in sauerstofffreie Basen stickstoffhaltiger Ringsysteme [PDF]

, 1902
O. Wallach
openalex   +1 more source

Anthraquinone Sulfonates as Water‐Soluble Photocatalysts: Synthetic Applications and Perspectives

ChemPhotoChem, EarlyView.
The development of photochemistry in water is rapidly advancing, and the demand for water‐soluble photocatalysts is increasing. Accordingly, anthraquinone sulfonates are interesting options for the activation of organic molecules through H‐atom transfer, proton‐coupled electron transfer, or the generation of reactive oxygen species.
Daniel Kolb, Andrey Fedulin, Burkhard König   +2 more
wiley   +1 more source