Results 101 to 110 of about 41,505 (286)

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 Kenntnis der Terpene und der ätherischen Öle. Über das Verhalten der Nitrosochlorid‐Additions‐Produkte gegen Chlorwasserstoff abspaltende Mittel [PDF]

, 1918
O. Wallach
openalex   +1 more source

Influence of the Substitution Pattern of Terpene‐Based Seven‐Membered Lactones on Yttrium‐Mediated Ring‐Opening Polymerization: A Kinetic and Mechanistic Investigation

Chemistry – A European Journal, EarlyView.
(‐)‐Menthide and trans (+)‐carvomenthide, differing only in substitution pattern, were polymerized via ROP using a bis(phenolate) yttrium catalyst. Kinetic studies showed faster polymerization of (+)‐carvomenthide but greater control with (‐)‐menthide. Experimental and DFT analyses revealed mechanistic differences in chain propagation, highlighting how
Lea‐Sophie Hornberger, Svenja Hiotidis, Shailja Jain, Michael Benz, Hugo Montan, Deven P. Estes, Johannes Kästner, Friederike Adams   +7 more
wiley   +1 more source

Das molekulare Brechungsvermögen der Terpene [PDF]

, 1882
Flawian Flawitzky
openalex   +1 more source

Development of CPA‐Catalyzed β‐Selective Reductive Amination of Cardenolides for the Synthesis and Biological Evaluation of Hydrolytically Stable Analogs

Chemistry – A European Journal, EarlyView.
We describe a new method to produce hydrolytically stable cardiotonic steroids using a CPA‐controlled diastereoselective reductive amination of cardenolide aglycones. The oleandrin and digitoxigenin analogs exhibited promising activity against various cancer cell lines in the NCI‐60 screen.
Natasha Perry, Shehab Eid, Gerold Schmitt‐Ulms, Pavel Nagorny   +3 more
wiley   +1 more source

SYNTHESES IN THE TERPENE SERIES: VIII. SYNTHESIS OF THE CIS- AND TRANS-ISOMERS OF 7,7,10-TRIMETHYLDECAL-1-ONE. A CONVENIENT MODIFICATION OF THE BROWN HYDRATION REACTION [PDF]

, 1959
Franz Sondheimer, Saul Wolfe
openalex   +1 more source

Titanium cis‐DACH Salan Catalyst for the Efficient Epoxidation of Nonactivated Olefins with Hydrogen Peroxide‐Terminal‐Selective Epoxidation of Multiply Unsaturated Terpenes

Chemistry – A European Journal, EarlyView.
Terminal‐selective epoxidation–catalytic, simple, and with H2O2 as oxidant. The titanium complex of a new type of salan ligand, accessible in one step from cis‐DACH and 3‐(pentafluorophenyl)salicylic aldehyde, is an efficient catalyst for the epoxidation of nonconjugated olefins with H2O2.
Christina Wartmann, Jörg.‐M. Neudörfl, Albrecht Berkessel   +2 more
wiley   +1 more source

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

, 1892
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

Transcriptomic analysis of the root system of Platycodon grandiflorum in response to the fallen leaves of Acer truncatum

Xibei zhiwu xuebao
[Objective] The aim of this study was to explore the effect of Acer truncatum fallen leaves in Beijing on the accumulation of medicinal active ingredients of Platycodon grandiflorum and to reveal the molecular mechanism of active ingredient synthesis ...
FENG Chaoqun, RUAN Kunfei, SHI Shaotong, LI Sen, CHENG Shaoying, LIU Zhonghua   +5 more
doaj   +1 more source