Results 91 to 100 of about 165,943,760 (239)

Alkyl transfer steps in the catalytic alkylation of benzene, toluene, and cyclohexane [PDF]

Journal of Catalysis, 1972
Abstract The rate of the catalytic redistribution of isotopic carbon in binary mixtures of benzene and toluene, benzene and ethylbenzene, toluene and xylene, toluene and ethylbenzene, cyclohexane and methylcyclohexane was investigated over supported Pt, Ir, Ru, and Au.
openaire   +2 more sources

Azidophosphonamido Rhodium(I) and Iridium(I) Complexes: Synthesis, Properties, and Linkage Isomerism

Chemistry – A European Journal, EarlyView.
A family of azidophosphonamido ligands and their corresponding rhodium(I) and iridium(I) complexes were synthesized. The rich reaction chemistry of these species revealed unusual linkage isomerization processes and bonding motifs. M = Rh, Ir; Mes = 2,4,6‐Me3C6H2. ABSTRACT A series of azidophosphonamido rhodium(I) and iridium(I) complexes ([iPr2P(N3R)NR]
Emily L. Trew, Daisy E. Cruz‐Milette, Douglas Turnbull, Paul G. Hayes   +3 more
wiley   +1 more source

Synthesis of hierarchical nanocrystalline β zeolite as efficient catalyst for alkylation of benzene with benzyl alcohol. [PDF]

RSC Adv, 2022
Zhou P, Liu MN, Luo QX, Zhang J, Chen H, Ma X, Hao QQ.   +6 more
europepmc   +1 more source

Hybrid Macrocyclic Peptides — Synthetic Strategies to Diversify and Cyclize Peptide Libraries in Phage Display Selections

Chemistry – A European Journal, EarlyView.
Hybrid macrocyclic peptides unite genetically encoded peptide libraries with the structural complexity of synthetic small molecules. This Review critically analyzes phage‐compatible cyclization and diversification chemistries, highlights emerging opportunities beyond traditional cysteine‐based approaches, and outlines how future advances may enable the
Titia Rixt Oppewal, Clemens Mayer
wiley   +1 more source

Alkylation of benzene with polyethylene on silicaalumina.

Journal of The Japan Petroleum Institute, 1986
Alkylation of benzene with polyethylene on silica•alumina was carried out by an autoclave. The yield and the composition of the products wcrc examined at 370-460°C. Above 400°C, the yield of liquid increased rapidly and at 430°C, the products were liquids (123wt%), solids (12wt%) and gases (6wt%), respectively. Alkylbenzenes in the liquid product, were
openaire   +2 more sources

Differences between Zn/HZSM-5 and Zn/HZSM-11 zeolite catalysts in alkylation of benzene with dimethyl ether

, 2014
HZSM-11 zeolite supported Zn catalysts with different Zn contents (xZn/HZSM-11A) were prepared. In the alkylation of benzene with dimethyl ether (DME) in a fixed bed reactor, the catalyst with Zn content of 6 wt% (6Zn/HZSM-11A) showed appropriate ...
Liu, Shenglin, Xu, Longya, Wei, Huijuan, Liu, Hui, Song, Chao, Liu, Zhenni, Xie, Sujuan, Xin, Wenjie   +7 more
core   +1 more source

Regioselective Aldol Reactions Directed by Charge and Orbital Effects in Cyclic Germyl Dienolates: Synthesis of Three Distinct Regio‐ and Stereoisomers

Chemistry – A European Journal, EarlyView.
Charge and orbital control represent fundamental principles in organic chemistry. In this study, these principles are applied to the aldol reactions of a cyclic Ge‐dienolate. By systematically tuning the charge and orbital distributions of the Ge‐dienolates and their aldehyde reaction partners, regio‐ and stereoselective access to three distinct aldol ...
Taishi Nojima, Akihito Konishi, Makoto Yasuda   +2 more
wiley   +1 more source

Preparation of Alumina Pillared Montmorillonite Clays Employing Ultrasonics and Their Catalytic Properties

Eurasian Chemico-Technological Journal, 2000
An accelerated diffusion of alumina precursor species in-between the gallery region of montmorilloniteclays by the use of ultrasonic technique is described. This method offers a faster, efficient and attractiveroute for the synthesis of alumina-pillared
S. P. Katdare, V. Ramaswamy, A. V. Ramaswamy   +2 more
doaj   +1 more source

Bis(2‐Adamantyl)Magnesium: Synthesis, Structure, and Applications of a Versatile and Shelf‐Stable 2‐Adamantyl Anion Equivalent

Chemistry – A European Journal, EarlyView.
At last, the long‐sought bis(2‐adamantyl)magnesium reagent has been prepared in high yield as a stable tetrahydrofuran/dioxane adduct and fully characterized by x‐ray crystallography. This potent nucleophile outperforms the corresponding Grignard in transmetallation and carbonyl addition reactions, opening new avenues in adamantyl organometallic and ...
Matthew V. DaCosta, Fioralba Taullaj, Jack H. Lin, Ulrich Fekl   +3 more
wiley   +1 more source

Redox‐Tuned Oxycarbamates Enable Divergent C─N and C─C Functionalization of Indolizines Under Photoredox Catalysis With Green Light

Chemistry – A European Journal, EarlyView.
Nonafluoromesitylsulfonyl (Nms)‐substituted oxycarbamates are introduced as redox‐lowered radical precursors for green‐light photoredox synthesis. Selective N─O bond cleavage generates amidyl radicals that directly aminate indolizines in DMF, whereas DMSO promotes 1,2‐hydrogen atom transfer (HAT) to α‐amino carbon‐centered radicals and C─C bond ...
Kevin Klaus Stefanoni, René Wilhelm
wiley   +1 more source