Results 41 to 50 of about 12,723 (118)

Heat Treatment of Pitch Obtained from Atmospheric Fixed-Bed Coal Gasification

Indonesian Journal of Chemistry, 2018
A medium temperature pitch obtained from atmospheric fixed-bed gasifier was distilled at a various time (1, 2, 3 and 4 h) to induce polymerization and the results were compared with a commercial pitch.
Phiciato Phiciato, Ika Monika, Arie Hardian   +2 more
doaj   +1 more source

The role of aromatization degree in governing π-π interfacial dynamics and optical bandgap evolution in activated carbon blends

Next Materials
This study establishes a robust strategy for tuning the optoelectronic properties of biomass-derived activated carbon (AC) by precisely regulating its degree of aromatization.
Sobri, Muhammad Latifur Rochman, Willy Satrio Nugroho   +2 more
doaj   +1 more source

A review on the catalytic pyrolysis of lipids to produce alternative aromatic hydrocarbons: Synthesis of hierarchically porous zeolites and aromatization mechanism

Circular Economy
Catalytic pyrolysis of non-edible lipids to produce alternative aromatic hydrocarbons is an important strategy to reduce CO2 emission in the petrochemical industry, which is hindered by coking and quick deactivation of zeolites.
Pengye Song, Shaojie Guo, Menghao Zuo, Xin Wang, Huiyu Qiu, Boxiong Shen   +5 more
doaj   +1 more source

Tandem dehydrogenation-olefination-decarboxylation of cycloalkyl carboxylic acids via multifold C–H activation

Nature Communications
Dehydrogenation chemistry has long been established as a fundamental aspect of organic synthesis, commonly encountered in carbonyl compounds. Transition metal catalysis revolutionized it, with strategies like transfer-dehydrogenation, single electron ...
Tanay Pal, Premananda Ghosh, Minhajul Islam, Srimanta Guin, Suman Maji, Suparna Dutta, Jayabrata Das, Haibo Ge, Debabrata Maiti   +8 more
doaj   +1 more source

Synthesis and Structure of Unsymmetrical Anthracenyl-Isoxazole Antitumor Agents Via the Diastereoselective Bromination of 3-(9′-Anthryl)-Isoxazole Esters

Crystals
In pursuit of unsymmetrical precursors for the novel series of anthracenyl-isoxazole amide (AIM) antitumor agents, a series of substituted anthracenes were subjected to bromination and re-aromatization in our study, during which we solved four single ...
Michael J. Campbell, Daniel A. Decato, Chun Li, Matthew J. Weaver, Nicholas R. Natale   +4 more
doaj   +1 more source

Computational Insight into Methane–Methanol Coupling and Aromatization over Metal-Modified ZSM-5: From Mechanism to Catalyst Screening

Chem & Bio Engineering
ZSM-5 zeolite modified by molybdenum is one of the promising catalysts for methane dehydroaromatization (MDA). The introduction of methanol to couple with methane over metal-modified ZSM-5 can facilitate the MDA reaction, but the reaction mechanism ...
Mengnan Sun, Xiaowa Nie, Xinwei Zhang, Sirui Liu, Chunshan Song, Xinwen Guo   +5 more
doaj   +1 more source

Catalytic acceptorless complete dehydrogenation of cycloalkanes

Nature Communications
The advancement of an effective hydrogen liberation technology from liquid organic hydrogen carriers, particularly cycloalkanes such as cyclohexane and methylcyclohexane, holds significance in realizing a hydrogen-centric society. However, the attainment
Rahul A. Jagtap, Yuki Nishioka, Stephen M. Geddis, Yu Irie, Tsukasa Takanashi, Rintaro Adachi, Akira Yamakata, Masaaki Fuki, Yasuhiro Kobori, Harunobu Mitsunuma, Motomu Kanai   +10 more
doaj   +1 more source

Halogencarbene-free Ciamician-Dennstedt single-atom skeletal editing

Nature Communications
Single-atom skeletal editing is an increasingly powerful tool for scaffold hopping-based drug discovery. However, the insertion of a functionalized carbon atom into heteroarenes remains rare, especially when performed in complex chemical settings ...
Shaopeng Liu, Yong Yang, Qingmin Song, Zhaohong Liu, Paramasivam Sivaguru, Yifan Zhang, Graham de Ruiter, Edward A. Anderson, Xihe Bi   +8 more
doaj   +1 more source

Deoxytrifluoromethylation/aromatization of cyclohexan(en)ones to access highly substituted trifluoromethyl arenes

Nature Communications
Trifluoromethyl arenes (Ar–CF3) are amongst the commonly encountered fluorinated substructures in pharmaceutical, agrochemical, and material sciences. However, predominant methods to access Ar–CF3 possess several limitations, including harsh conditions ...
Pankaj Bhattarai, Mohammed K. Abd El-Gaber, Suvajit Koley, Ryan A. Altman   +3 more
doaj   +1 more source

Cross-dehydrogenative coupling macrocyclization for the construction of donor-acceptor nanohoops. [PDF]

Chem Sci
Chakraborty B, Torubaev Y, Yi YQ, Nakatani N, Luscombe CK.   +4 more
europepmc   +1 more source