Results 211 to 220 of about 128,452 (331)

Synthesis of 1,2,4 oxadiazol-5-imine, 1,2,4-triazol-3-imine and derivatives: a substituted cyanamide-based strategy for heterocycle synthesis [PDF]

Shreesha V. Bhat
openalex   +1 more source

Research Status and Development Trend of Macromolecular Structure and Model Construction of Different Coals

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Coal is a natural macromolecular substance composed of complex organic molecules and a small amount of minerals. Its chemical composition and microstructure are highly complex and variable, and no unified definition exists. This inherent structural complexity underscores the theoretical significance of constructing accurate macromolecular ...
Chao Zhou, Jun Chen, Yali Cheng, Huanhuan Shang, Longxiang Bao, Chenliang Peng   +5 more
wiley   +1 more source

Couple-close: Unified approach to semisaturated cyclic scaffolds. [PDF]

Science
Xie J, Zhao WY, Wang JZ, Lyon WL, Takanashi N, Long A, Sodano TM, Kelly CB, Bryan MC, MacMillan DWC.   +9 more
europepmc   +1 more source

Synthesis of 6 or 7 membered nonplanar heterocycles presenting a N-O bond

, 2019
Shuang-Qi Tang
openalex   +1 more source

Homologous Bio‐Tar and Bio‐Tar Pitch as Co‐Carbonization Agents in the Preparation of Mesophase Pitch

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The present work systematically compares the performance differences between two novel homologous materials employed as co‐carbonization agents in the synthesis of mesophase pitch. Low‐cost FCC slurry was used as the raw material, with bio‐tar (BT) and bio‐tar pitch (BTP) as co‐carbonization agents.
Mingzhi Wang, Xiaolong Zhou
wiley   +1 more source

Low Valent Boron Heterocycles Supported by a Binucleating NacNac/NCN Pincer Janus Ligand [PDF]

Chia‐Yu Chang, Laurie J Donnelly, Alexander Harrison, Wen Zhou, Warren E. Piers   +4 more
openalex   +1 more source

Removal of Methylene Blue and Congo Red Dyes Using Sustainable and Eco‐Friendly Bioadsorbents: A Review

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The continuous increasing discharge of synthetic dyes into aquatic systems seems to be an important environmental and health risk due to their high toxicity and resistance to biodegradation. Among these dyes, methylene blue (MB) and Congo red (CR) are widely used in textile and industrial applications, necessitating sustainable and efficient ...
Avanish Kumar, Ashish Kapoor, Dan Bahadur Pal   +2 more
wiley   +1 more source

Simple, one-step syntheses of tri- and tetracyclic B,N,S-heterocycles from reactions of a diboracumulene with thiols. [PDF]

Chem Sci
Markl C, Kar S, Lubczyk L, Hammond K, Dewhurst RD, Braunschweig H.   +5 more
europepmc   +1 more source

Development of new membranes based on aromatic polymers and heterocycles for fuel cells

, 2007
Yongzhu Fu
openalex   +1 more source

Mechanism of Hydrogen Sulfide Generation and Prevention Strategies in Oil and Gas Fields: A Case Study of the Sickle Bay Operation Area

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To address the persistent exceedance of hydrogen sulfide (H2S) concentrations and the limited effectiveness of existing treatments in the Sickle Bay oil production area, this study deeply analyzes the mechanism of H2S generation in the Sickle Bay oil production area and proposes targeted prevention and control strategies. The results show that
Bo Lei, Yao‐long Li, Bao‐ping Bai, Xiang‐de Zhang, Guan‐tao Shi, Yong‐long Xie, Chen‐xiao Hou, Cong‐Yu Ke   +7 more
wiley   +1 more source