Results 111 to 120 of about 34,597 (238)

Palladium-Catalyzed Selective Carbonylation Reactions of Ortho-Phenylene Dihalides with Bifunctional N,O-Nucleophiles

open access: yesMolecules
Palladium-catalyzed carbonylation reactions of ortho-phenylene dihalides were studied using aminoethanols as heterobifunctional N,O-nucleophiles. The activity of aryl-iodide and -bromide as well as the chemoselective transformation of amine and hydroxyl ...
Fanni Bede   +3 more
doaj   +1 more source

Application of Hosomi-Sakurai allylation reaction in total synthesis of biologically active natural products

open access: yesFrontiers in Chemistry
The Hosomi–Sakurai allylation reaction has been widely applied in the total synthesis of biologically active natural products, especially in synthesising complex polycyclic compounds containing multi-stereogenic centres since its discovery in 1976.
Justice Akwensi   +3 more
doaj   +1 more source

Synthesis and Structural Characterisation of [Ir4(CO)8(CH3)(m4-h3-Ph2PCCPh)(m-PPh2)] and of the Carbonylation Product [Ir4(CO)8{C(O)CH3}(m4-h3-Ph2PCCPh)(m-PPh2)]; First Evidence for the Formation of a CO Cluster Adduct before CO Insertion

open access: yesJournal of the Brazilian Chemical Society, 1999
Deprotonation of [(mu-H)Ir4(CO)10(mu-PPh2)], 1, gives [Ir4(CO)10(mu-PPh2)]- that reacts with Ph2PCCPh and CH3I to afford [Ir4(CO)8(CH3)(mu4-eta³-Ph2PCCPh)(mu-PPh2)], 2 (34%), besides [Ir4(CO)9(mu3-eta³-Ph2PC(H)CPh)(mu-PPh2)] and [(mu-H)Ir4(CO)9(Ph2PCºCPh)
Braga Dario   +4 more
doaj  

Sustainable synthesis of quinazolinones: exploring multicomponent reactions with a novel magnetic palladium catalyst

open access: yesFrontiers in Chemistry
This study introduces a sustainable and efficient method for synthesizing quinazolinones, a class of heterocyclic compounds with significant pharmaceutical applications, via a multicomponent reaction (MCR) strategy.
Xiaotong Liang, Ziqi Yang, Bo Li
doaj   +1 more source

High Reactivity of Dimethyl Ether Activated by Zeolite Ferrierite within a Fer Cage: A Prediction Study

open access: yesMolecules
The zeolite-catalyzed conversion of DME into chemicals is considered environmentally friendly in industry. The periodic density functional theory, statistical thermodynamics, and the transition state theory are used to study some possible parallel ...
Xiaofang Chen, Pei Feng, Xiujie Li
doaj   +1 more source

Transition-metal catalyzed synthesis of Ketoprofen

open access: yesJournal of the Brazilian Chemical Society, 2000
Transition metal-catalyzed reactions including carbonylations, hydrovinylations and hydrogenations have been applied in the synthesis of alpha-(3-benzoylphenyl)propanoic acid (Ketoprofen). 3-Vinylbenzophenone was obtained from 3-bromobenzophenone by a Pd-
Ramminger Carolina   +4 more
doaj  

Myofilament protein carbonylation contributes to the contractile dysfunction in the infarcted LV region of mouse hearts [PDF]

open access: yes, 2019
Balogh, Ágnes   +10 more
core   +1 more source

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