نتایج جستجو برای: of aromatics

تعداد نتایج: 21164521  

Journal: :Chemical communications 2012
Ben Conway Elaine Crosbie Alan R Kennedy Robert E Mulvey Stuart D Robertson

As the aluminate base [LiAl(TMP)(2)(iBu)(2)] 1 displays halogen tolerance towards substituted aromatics, 4-halo-anisoles have been ortho-aluminated and electrophilically quenched to form synthetically useful multi-heterohalogenated anisoles, with the Al intermediates along the route structurally defined.

2006
K. N. Houk K. N. HOUK

A qualitative molecular orbital rationalization of the selectivities in ortho, meta, and cycloadditions of singlet excited states of substituted benzenes to alkenes, and of triplet state di—ir—methane rearrangements of substituted benzonorbornadienes is presented. As the name suggests, excited states of benzene and substituted benzenes are prone to aroused reactivity tendencies, rearranging to ...

Journal: :Chemistry: A European Journal 2022

Perfluorinated aromatics and heteroaromatics are versatile reagents for the modification of amino acids, peptides proteins. This is principally because they undergo rapid selective nucleophilic substitution reactions with biological nucleophiles. They are, therefore, exciting tools which to modulate activities drug-like properties natural synthetic biomolecules in drug discovery append, example...

Journal: :Applied and environmental microbiology 1993
D E Akin A Sethuraman W H Morrison S A Martin K E Eriksson

Three wild-type white rot fungi and two cellulase-less mutants developed from Phanerochaete chrysosporium K-3 (formerly Sporotrichum pulverulentum) were tested for their ability to delignify grass cell walls and improve biodegradation by rumen microorganisms. Fungal-treated and control stems of Bermuda grass were analyzed for their content of ester- and ether-linked aromatics by using alkali ex...

Journal: :Journal of Cleaner Production 2022

The techno-economic performance and CO2 equivalent (CO2eq) reduction potential of bio-based aromatic production cases with without capture storage (CCS) have been evaluated compared to those fossil-based production. bio-cases include tail gas reactive pyrolysis (TGRP), catalytic (CP), hydrothermal liquefaction (HTL), gasification-methanol-aromatics (GMA), Diels-Alder furan/furfural combined lig...

Journal: :Chemical Society Reviews 2021

This review focuses on the heavier group 13–15 element-containing heterocycles of [4 n +2]-electron systems featuring classical and advanced aromatics.

2004
David A. Berry Dushyant Shekhawat Todd H. Gardner

Single component as well as binary component reforming studies were conducted on diesel surrogates (tetradecane, decalin, and 1-methylnaphthalene). H2, CO, and CO2 production was measured as a function of temperature, space velocity, and reforming type for a Pt-based catalyst. Intermediate species formation of various hydrocarbons including olefins and aromatics were observed during reforming. ...

A convenient route for cyanation and bromination of some electron-rich aromatics (anisole, 1,3-dimethoxybenzene, 1,4-dimethoxybenzene, 1,3,5-trimethoxybenzene and β-naphthol) by BrCN in the presence of aluminum trichloride (AlCl3), as catalyst, by grinding method under solvent-free conditions at room temperature to 60 °C was described in good yield. The structures of all obtained products were ...

Journal: :Journal of Energy Resources Technology-transactions of The Asme 2021

Abstract Fuel formulation with the particular selection of fuel components is a promising approach that offers reduction harmful emissions without altering combustion system performance. Each component has its own characteristics and hence contribution to emissions. Aromatic one main fossil-based fuels strong correlation formation particulate matter (PM) Besides, aromatics presence in essential...

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