Results 111 to 120 of about 12,918 (277)

An Enantioselective Alkene Aminoarylation to Form Chiral Indolines via Electrostatically‐Directed Palladium Catalysis

open access: yesAngewandte Chemie, EarlyView.
Enantioselective aminoarylation of ortho‐allyl anilines is achieved under mild conditions. Key to success is the electrostatically‐directed nature of the key aminopalladation step, achieved by using the sulfonated chiral ligand sSPhos on palladium. A detailed study of electronic trends allows tuning of the sulfonamide protecting group to enable good ...
Max Kadarauch   +4 more
wiley   +2 more sources

Substituição nucleofílica aromática em 1,2-dicloro-4,5-dinitrobenzeno com aminas [PDF]

open access: yes, 2006
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.O 1,2-dicloro-4,5-dinitrobenzeno, DCDNB, reage com aminas primárias em condições de temperatura e pressão ambientes, formando produtos ...
Ricardo, Juan
core  

Photochemical rearrangement of benzylenol ethers

open access: yes, 1968
Evidence is presented for the structures of the products isolated from the light-induced rearrangement of benzylenol ethers of Δ4-3-oxo-steroids. The products obtained on irradiation of benzyl vinyl ether indicate that the rearrangement proceeds by ...
K Schaffner, JT Pinhey
core   +1 more source

Computer Vision Enables Monitoring and Kinetic Analysis of Structurally Diverse Carbon Monoxide Surrogates

open access: yesAngewandte Chemie, EarlyView.
A non‐contact computer vision method enables monitoring and quantitative comparison of vessel‐specific CO release kinetics from structurally diverse surrogates in two‐chamber COware reactors, revealing that surrogate reactivity scores correlate with carbonylation reaction outcomes.
Kristin Donnachie   +4 more
wiley   +2 more sources

Enantioselective Synthesis of Isoindolinone by Palladium-Catalyzed Aminoalkynylation of O-Phenyl Hydroxamic Ethers with Alkynes

open access: yes
A highly efficient palladium-catalyzed asymmetric tandem aza-Heck/Sonogashira coupling reaction of O-phenyl hydroxamic ethers with terminal alkynes is described.
Han, Ying   +6 more
core   +1 more source

Novel 5-substituted 3-hydroxyphenyl and 3-nitrophenyl ethers of S-prolinol as α4β2-nicotinic acetylcholine receptor ligands

open access: yes, 2016
A series of 3-nitrophenyl and 3-hydroxyphenyl ethers of (S)-N-methylprolinol bearing bulky and lipophilic substituents at phenyl C5 were tested for affinity at α4β2 and α3β4 nAChRs. The two phenyl ethers 5-substituted with 6-hydroxy-1-hexynyl showed high
F. Bavo   +6 more
core   +1 more source

Three Component Thio‐ and Carboboration of Alkynes: A Modular Route to Functionalised Bicyclic Boronates

open access: yesAngewandte Chemie, EarlyView.
Three‐component thio‐ and carbo‐boration reactions to form functionalised benzoxaborinines and benzazaborinines are reported. The nucleophile scope includes thioethers, thiols, and (hetero)arenes. Mechanistic studies revealed a disparity between thioboration using thioethers and using thiols.
Laura Winfrey   +4 more
wiley   +2 more sources

Isomerisation of Optically Active Ethers.

open access: yes, 2018
Ethers of the general formula CHR[2].OR' re-arrange under the influence of Lewis bases such as phenyl lithium into their isomeric alcohols CR[2].R'OH.
Norula, Jagdish Lal.
core  

Isomerisation of Optically Active Ethers.

open access: yes, 1961
Ethers of the general formula CHR[2].OR' re-arrange under the influence of Lewis bases such as phenyl lithium into their isomeric alcohols CR[2].R'OH.
Norula, Jagdish Lal.
core  

Pd-Catalyzed Synthesis of Allylic Silanes from Allylic Ethers

open access: yes, 2016
Allylic phenyl ethers serve as electrophiles toward Pd(0) en route to a variety of allylic silanes.
Bruce H. Lipshutz (1330881)   +2 more
core   +1 more source

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