Results 121 to 130 of about 21,740 (289)

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

Phytotoxicity of agrochemical adjuvants on avocados

, 2003
R.E. Gaskin, M. E. Hofstee, G.S. Elliott
openalex   +2 more sources

Runoff of Pesticides: Achievements and Limitations of Modelling Agrochemical Dislocation from Non-Point Sources at Various Landscape Related Scales [PDF]

, 2007
Marcus Schulz, Michael Matthies
openalex   +1 more source

Boronate‐Type‐Controlled Regioselective Catalytic [2 + 2 + 2] Cyclotrimerization for Synthesis of Polysubstituted 2‐ and 3‐Borylated Pyridines

ChemistryEurope, EarlyView.
Ring the boron, not the bell: cyclotrimerization of borylated diynes with nitriles using Co and Ru catalysts allows the efficient synthesis of a wide variety of borylated pyridines with high regioselectivity, paving the way for multiple post‐functionalizations.
Eva Bednářová, David Nečas, Rahamdil Usman, Anagha K. Satheeshkumar, Róbert Gyepes, Ivana Císařová, Marko Hapke, Martin Kotora   +7 more
wiley   +1 more source

Historical Trends of Dioxin and Agrochemicals in Rice Straw and their Impact on Daily PCDD/Fs Intake via Foods

, 2003
Yutaka Kameda, Shigeki Masunaga, Hiroshi Hamada, Junko Nakanishi   +3 more
openalex   +2 more sources

Long-term agrochemical dynamics: engineering, application and challenges of calcareous sapropel as a soil fertilizer [PDF]

, 2007
C. A. Booth, Eugenija Bakšienė, M. A. Fullen, Antanas Ciūnys   +3 more
openalex   +1 more source

Nitrogen‐Centered Radical‐Directed C(sp3)−H Amination and Aminoalkylation Using (Diarylmethylene)amino Benziodoxolones

ChemistryEurope, EarlyView.
This report describes a C(sp3)−H aminofunctionalization via the photoexcitation of (diarylmethylene)amino benziodoxolones. These iodine reagents act as both single‐electron oxidants and nitrogen‐based SOMOphiles, serving as iminyl radicals, enabling the site‐selective C(sp3)−H amination and aminoalkylation of α‐aminoxy acid derivatives.
Kensuke Kiyokawa, Mari Sugimura, Megumi Abe, Daiki Wada, Hikaru Kaneba, Satoshi Minakata   +5 more
wiley   +1 more source

Pd(II)-catalyzed C–H annulation and lactonization of indole-2-carboxamides with hydroxyalkynoates using air as an oxidant

Tetrahedron Chem
A novel palladium(II) catalyzed C–H annulation strategy has been developed for the synthesis of a diverse range of furo[3′,4':5,6]pyrido[3,4-b]indole-1,5(3H)-dione scaffolds. This is the first report on the construction of polycyclic carboline frameworks
Kiran Aswale, Rajashaker Bantu, B. Sridhar, B.V. Subba Reddy   +3 more
doaj  

RESPONSE OF A NEWLY RECLAIMED CALCAREOUS SOIL AT THE EASTERN RIM OF EL FAYOUM DEPRESSION TO AGROCHEMICAL AMENDMENT FOR SUSTAINING ITS AGRICULTURAL UTILIZATION [PDF]

, 2007
Atif A. Awadalla, Mohamed S.A. Ewees, Samir A. M. Moussa   +2 more
openalex   +1 more source

Synthesis of Cyclic Sulfilimines and Sulfoximines via Copper‐Mediated C(sp2)–H Sulfanylation of Benzylamines with a Catalytic Transient Directing Group

ChemistryEurope, EarlyView.
Copper‐mediated transient C─H sulfanylation of benzylamines with sulfenamides enables rapid access to thioethers, cyclic sulfilimines, and sulfoximines. Mechanistic investigations using 1H NMR and electron paramagnetic resonance spectroscopy reveal an unprecedented thermally induced homolytic cleavage of the sulfenamide N─S bond, slowly releasing the ...
Tsz‐Kan Ma, Peerawat Saejong, King‐Long Or, Callum S. Begg, James A. Bull   +4 more
wiley   +1 more source