Results 11 to 20 of about 899 (191)

DFT Study on the Oxidative Addition of 4-Substituted Iodobenzenes on Pd(0)-Phosphine Complexes [PDF]

open access: yes, 2015
The oxidative additon of 4-substituted iodobenzenes on Pd(0)-PMe3 complexes has been studied at the BP86 level of theory including dispersion correction and solvation effect, with tetrahydrofuran as solvent.
Kollár, László   +2 more
core   +2 more sources

UV photolysis of 4-iodo-, 4-bromo-, and 4-chlorophenol::Competition between C-Y (Y = halogen) and O-H bond fission [PDF]

open access: yes, 2013
The wavelength dependences of C–Y and O–H bond fission following ultraviolet photoexcitation of 4-halophenols (4-YPhOH) have been investigated using a combination of velocity map imaging, H Rydberg atom photofragment translational spectroscopy, and high ...
Ashfold, Michael N. R.   +5 more
core   +2 more sources

Facile syntheses of building blocks for the construction of phosphotyrosine mimetics [PDF]

open access: yes, 2000
The copper-catalysed zinc phosphonate chemistry described by Yokomatsu and Shibuya can be used to enter the classical organometallic coupling repertoire via Stille and Suzuki–Miyaura couplings.
Cockerill, G Stuart   +3 more
core   +1 more source

Cocrystallization of antifungal compounds mediated by halogen bonding [PDF]

open access: yes, 2023
The application of halogen bonding in pharmaceutical chemistry remains a challenge. In this work, novel halogen-bonded cocrystals based on azole antifungal active pharmaceutical ingredients (APIs) and the ditopic molecule 1,4-diiodotetrafluorobenzene are
Benito, Mónica   +2 more
core   +1 more source

Near ultraviolet photochemistry of 2-bromo- and 2-iodothiophene:Revealing photoinduced ring opening in the gas phase? [PDF]

open access: yes, 2015
Velocity map imaging methods, with a new and improved ion optics design, have been used to explore the near ultraviolet photodissociation dynamics of gas phase 2-bromo- and 2-iodothiophene molecules.
Ashfold, Michael N R   +4 more
core   +2 more sources

Photopolymerization of Methyl Methacrylate Initiated by Iodobenzene– Triethylamine and Iodobenzene–Sodium Thiosulfate Systems [PDF]

open access: yesPolymer Journal, 1972
The photopolymerization of methyl methacrylate was investigated in both iodobenzene–triethylamine and iodobenzene–Sodium thiosulfate systems. The polymerization reactions proceeded according to a radical mechanism, and were initiated by the phenyl radical which was generated by photolysis of iodobenzene.
Sumihiro Sakai   +2 more
openaire   +1 more source

An efficient intermolecular [Pd]-catalyzed C–C and intramolecular [Cu]-catalyzed C–O bonds formation: synthesis of functionalized flavans and benzoxepine [PDF]

open access: yes, 2012
An efficient three-step strategy for the synthesis of functionalized flavans, starting from readily available 2-bromoiodobenzenes and aryl vinyl alcohols, is presented and successfully extended to benzoxepine.
A, Gopi Krishna Reddy   +6 more
core   +1 more source

One-Pot Synthesis of Hypervalent Diaryl(iodo)bismuthanes from o-Carbonyl Iodoarenes by Zincation

open access: yesHeteroatom Chemistry, 2019
Diaryl(iodo)bismuthanes possessing a hypervalent C=O•••Bi–I bond were conveniently synthesized in a one-pot reaction by using arylzinc reagents generated from o-carbonyl iodobenzenes and zinc powder under ultrasonication.
Toshihiro Murafuji   +6 more
doaj   +1 more source

Palladium-catalyzed selective α-arylation of ortho -bromoacetophenones [PDF]

open access: yes, 2014
Synthesis of 1-(2-bromophenyl)-2-phenylethanones via an intermolecular Pd-catalyzed α-arylation of 1-(2-bromophenyl)ethanones is presented. The method relies on selective C-H activation (α-arylation) of relatively more reactive external iodo-arenes as ...
A, Gopi Krishna Reddy   +2 more
core   +1 more source

Convergent Total Synthesis of 16β‐Hydroxylpseudobufarenogin

open access: yesAngewandte Chemie, EarlyView.
We present a novel convergent strategy that integrates Pd/Ag‐promoted Suzuki–Miyaura coupling with Ir‐catalyzed radical‐relay cyclization, enabling the first total synthesis of 16β‐hydroxylpseudobufarenogin. This approach is broadly applicable to the total synthesis of various oxygenated bufadienolides by simply modifying the fragment structures ...
Wataru Shigematsu   +3 more
wiley   +2 more sources

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