Na/N Co-doped Seaweed Biochar Composite for Efficient Removal of Aqueous Pb(II) and Cu(II)
In this study, Sodium and nitrogen co-doped porous carbon material (Na/NABc) was successfully prepared from seaweed, sodium hydroxide, and dicyandiamide. The experimental results showed that Na/NABc is an excellent adsorbent for the effective removal of Pb(II) and Cu(II) from water bodies. Specifically, 99.8% of Pb(II) and 64.6% Cu(II) (100 mg/L) were removed within 12 h using 10 mg Na/NABc(10%) at 25 °C. The adsorption of Pb(II) and Cu(II) in aqueous solution by Na/NABc(10%) was efficient and rapid in the first stage. The theoretical maximum removal capacities of Na/NABc for Pb(II) and Cu(II) were 959.6 and 299.1 mg/g, r...
Source: Chemistry, an Asian Journal - April 12, 2024 Category: Chemistry Authors: Meiyuan Fu Qianhui Ma Yun Luo Wen Feng Xianghui Wang Source Type: research
Homogeneous and Heterogeneous Frustrated Lewis Pairs for the Activation and Transformation of CO2
Chem Asian J. 2024 Apr 12:e202400208. doi: 10.1002/asia.202400208. Online ahead of print.ABSTRACTDue to the serious ecological problems caused by the high CO2 content in the atmosphere, reducing atmospheric CO2 has attracted widespread attention from academia and governments. Among the many ways to mitigate CO2 concentration, the capture and comprehensive utilization of CO2 through chemical methods have obvious advantages, whose key is to develop suitable adsorbents and catalysts. Frustrated Lewis pairs (FLPs) are known to bind CO2 through the interaction between unquenched Lewis acid sites/Lewis base sites with the O/C of...
Source: Chemistry, an Asian Journal - April 12, 2024 Category: Chemistry Authors: Tao Du Peng Zhang Zhen Jiao Jiancheng Zhou Ding Yuxiao Source Type: research
Organocatalyzed Hydroacylation of Enones by Photosensitization of Acyl Silanes
Chem Asian J. 2024 Apr 10:e202400240. doi: 10.1002/asia.202400240. Online ahead of print.ABSTRACTA mild protocol for hydroacylation of enones through photosensitization of acyl silanes with thioxanthone under blue light (455 nm) irradiation is reported. A Brønsted acid is used as a co-catalyst in the reaction. The versatility of the method is demonstrated through inter- and intramolecular hydroacylation reaction. The hydroacylation product is applied for synthesizing an anti-HCV agent. Mechanistic insights are also provided through control experiments.PMID:38600748 | DOI:10.1002/asia.202400240 (Source: Chemistry, an Asian Journal)
Source: Chemistry, an Asian Journal - April 11, 2024 Category: Chemistry Authors: Shiv Shankar Patel Samiksha Gupta Chandra Bhushan Tripathi Source Type: research
Tuning Green Explosives through SNAr Chemistry
Chem Asian J. 2024 Apr 11:e202400212. doi: 10.1002/asia.202400212. Online ahead of print.ABSTRACTReactivity and regioselectivity of SNAr-type fluorine substitution with azide in polyfluoronitrobenzenes was studied both theoretically and experimentally. The obtained polyazidonitrobenzene derivatives were extensively characterized by NMR, IR, HPLC, X-ray, and DFT methods. It was found that the substitution with the azide nucleophile occurs first at the para- and the ortho-positions to the NO2-group and that transazidation reactions also occur here. Thermal decomposition of prepared azidonitrobenzenes was studied both in cont...
Source: Chemistry, an Asian Journal - April 11, 2024 Category: Chemistry Authors: Sergei Nikitin Frederik Diness Source Type: research
Biomaterials for Targeting Endoplasmic Reticulum in Cancer
Chem Asian J. 2024 Apr 11:e202400250. doi: 10.1002/asia.202400250. Online ahead of print.ABSTRACTEndoplasmic reticulum (ER) is one of the most important sub-cellular organelles which controls myriads of biological functions including protein biosynthesis with proper functional folded form, protein misfolding, protein transport into Golgi body for secretion, Ca2+ homeostasis and so on. Subsequently, dysregulation in ER function leads to ER stress followed by disease pathology like cancer. Hence, targeting ER in the cancer cells emerged as one of the futuristic strategies for cancer treatment. However, the major challenge is...
Source: Chemistry, an Asian Journal - April 11, 2024 Category: Chemistry Authors: Tripti Mishra Poulomi Sengupta Sudipta Basu Source Type: research
Organocatalyzed Hydroacylation of Enones by Photosensitization of Acyl Silanes
Chem Asian J. 2024 Apr 10:e202400240. doi: 10.1002/asia.202400240. Online ahead of print.ABSTRACTA mild protocol for hydroacylation of enones through photosensitization of acyl silanes with thioxanthone under blue light (455 nm) irradiation is reported. A Brønsted acid is used as a co-catalyst in the reaction. The versatility of the method is demonstrated through inter- and intramolecular hydroacylation reaction. The hydroacylation product is applied for synthesizing an anti-HCV agent. Mechanistic insights are also provided through control experiments.PMID:38600748 | DOI:10.1002/asia.202400240 (Source: Chemistry, an Asian Journal)
Source: Chemistry, an Asian Journal - April 11, 2024 Category: Chemistry Authors: Shiv Shankar Patel Samiksha Gupta Chandra Bhushan Tripathi Source Type: research
Tuning Green Explosives through SNAr Chemistry
Chem Asian J. 2024 Apr 11:e202400212. doi: 10.1002/asia.202400212. Online ahead of print.ABSTRACTReactivity and regioselectivity of SNAr-type fluorine substitution with azide in polyfluoronitrobenzenes was studied both theoretically and experimentally. The obtained polyazidonitrobenzene derivatives were extensively characterized by NMR, IR, HPLC, X-ray, and DFT methods. It was found that the substitution with the azide nucleophile occurs first at the para- and the ortho-positions to the NO2-group and that transazidation reactions also occur here. Thermal decomposition of prepared azidonitrobenzenes was studied both in cont...
Source: Chemistry, an Asian Journal - April 11, 2024 Category: Chemistry Authors: Sergei Nikitin Frederik Diness Source Type: research
Biomaterials for Targeting Endoplasmic Reticulum in Cancer
Chem Asian J. 2024 Apr 11:e202400250. doi: 10.1002/asia.202400250. Online ahead of print.ABSTRACTEndoplasmic reticulum (ER) is one of the most important sub-cellular organelles which controls myriads of biological functions including protein biosynthesis with proper functional folded form, protein misfolding, protein transport into Golgi body for secretion, Ca2+ homeostasis and so on. Subsequently, dysregulation in ER function leads to ER stress followed by disease pathology like cancer. Hence, targeting ER in the cancer cells emerged as one of the futuristic strategies for cancer treatment. However, the major challenge is...
Source: Chemistry, an Asian Journal - April 11, 2024 Category: Chemistry Authors: Tripti Mishra Poulomi Sengupta Sudipta Basu Source Type: research
Sustainable harnessing of waste polycarbonate for synthesizing activated furans to generate Stenhouse adducts on polymer surface
This study presented an innovative carbonyl extraction method to utilize waste poly(bisphenol A carbonate) (PC) as reaction precursor to synthesis of activated furan as precursor for photoswitchable Stenhouse adducts. This innovative chemical strategy not only generated N,N'-functionalized barbiturates but also provided an eco-friendly and cost-effective alternative to traditional synthesis methods. The method presented hereby not only promotes sustainability by repurposing waste polycarbonate as carbonyl equivalent under green conditions but also yielded reusable bisphenol A (BPA). Furthermore, the derived activated furan...
Source: Chemistry, an Asian Journal - April 10, 2024 Category: Chemistry Authors: Lisa Zeu ßel Shefali Chowdhary Wu Haocheng Vipan Kumar Sukhdeep Singh Source Type: research
Ambient Temperature Metal-Free Thiomethylation of Chloroheteroarenes and Chloropurines
Chem Asian J. 2024 Apr 10:e202400114. doi: 10.1002/asia.202400114. Online ahead of print.ABSTRACTHerein, we report an in-situ mild and metal-free protocol for thiomethylation of heteroarenes in high yields. The thiomethylation of various chloropurines, nucleosides, and chloroheteroarenes has been accomplished offering easy access to agrochemicals and synthetic molecules useful for drug discovery.PMID:38598666 | DOI:10.1002/asia.202400114 (Source: Chemistry, an Asian Journal)
Source: Chemistry, an Asian Journal - April 10, 2024 Category: Chemistry Authors: Manisha Patel Ra K Vora Yogesh S Sanghvi Anant Kapdi Source Type: research
Pincer Nickel-Catalyzed Olefination of Alcohols with Benzylphosphine Oxides
Chem Asian J. 2024 Apr 10:e202400255. doi: 10.1002/asia.202400255. Online ahead of print.ABSTRACTN,N,P-Pincer nickel complexes effectively catalyze reaction of alcohols with benzylphosphine oxides to form alkenes in good yields. The protocol suits for a wide scope of substrates and generates only E-configurated alkenes. The method also shows good compatibility of functional groups. Methoxy, methylthio, trifluoromethyl, ketal, fluoro, chloro, bromo, thienyl, and furyl groups are tolerated. The mechanism studies support that the reaction proceeds through catalytic dehydrogenation of alcohols to aldehydes or ketones followed ...
Source: Chemistry, an Asian Journal - April 10, 2024 Category: Chemistry Authors: Yu-Tong Duan Bo Yang Zhong-Xia Wang Source Type: research
Sustainable harnessing of waste polycarbonate for synthesizing activated furans to generate Stenhouse adducts on polymer surface
This study presented an innovative carbonyl extraction method to utilize waste poly(bisphenol A carbonate) (PC) as reaction precursor to synthesis of activated furan as precursor for photoswitchable Stenhouse adducts. This innovative chemical strategy not only generated N,N'-functionalized barbiturates but also provided an eco-friendly and cost-effective alternative to traditional synthesis methods. The method presented hereby not only promotes sustainability by repurposing waste polycarbonate as carbonyl equivalent under green conditions but also yielded reusable bisphenol A (BPA). Furthermore, the derived activated furan...
Source: Chemistry, an Asian Journal - April 10, 2024 Category: Chemistry Authors: Lisa Zeu ßel Shefali Chowdhary Wu Haocheng Vipan Kumar Sukhdeep Singh Source Type: research
Phosphine-Mediated Dimerization of Open-[60]Fullerenes
Chem Asian J. 2024 Apr 8:e202400142. doi: 10.1002/asia.202400142. Online ahead of print.ABSTRACTBy a reaction of trimethylphosphine with an open-[60]fullerene, corresponding dimers could be generated via two-fold deoxygenation processes even though the formation of β-oxo-phosphorous ylide is inevitable, a part of which is hydrolyzed to yield an α-methylene carbonyl derivative. Nevertheless, Wittig reaction and aldol condensation did not proceed well, indicating the presence of an unknown dimerization pathway. In the ylide formation, 1-phosphonium-3-carbabetaine was previously proposed as a key intermediate. Upon assuming...
Source: Chemistry, an Asian Journal - April 8, 2024 Category: Chemistry Authors: Shu Okamoto Yoshifumi Hashikawa Yasujiro Murata Source Type: research
Progress in electrochemically empowered C-O bond formation: Unveiling the pathway of efficient green synthesis
Chem Asian J. 2024 Apr 7:e202400116. doi: 10.1002/asia.202400116. Online ahead of print.ABSTRACT(C-X) bonds (X= C, N, O) are the main backbone for making different skeleton in the organic synthetic transformations. Among all the sustainable techniques, electro-organic synthesis for C-X bond formation is the advanced tool as it offers a greener and more cost-effective approach to chemical reactions by utilizing electrons as reagents. In this review, we want to explore the recent advancements in electrochemical C-O bond formation. The electrochemically driven C-O bond formation represents an emerging and exciting area of res...
Source: Chemistry, an Asian Journal - April 7, 2024 Category: Chemistry Authors: Debosmit Ghosh Aroop Kumar Samal Anita Parida Mohammed Ikbal Akash Jana Rathin Jana Pradeepta Kumar Sahu Soumen Giri Shubhankar Samanta Source Type: research
Progress in electrochemically empowered C-O bond formation: Unveiling the pathway of efficient green synthesis
Chem Asian J. 2024 Apr 7:e202400116. doi: 10.1002/asia.202400116. Online ahead of print.ABSTRACT(C-X) bonds (X= C, N, O) are the main backbone for making different skeleton in the organic synthetic transformations. Among all the sustainable techniques, electro-organic synthesis for C-X bond formation is the advanced tool as it offers a greener and more cost-effective approach to chemical reactions by utilizing electrons as reagents. In this review, we want to explore the recent advancements in electrochemical C-O bond formation. The electrochemically driven C-O bond formation represents an emerging and exciting area of res...
Source: Chemistry, an Asian Journal - April 7, 2024 Category: Chemistry Authors: Debosmit Ghosh Aroop Kumar Samal Anita Parida Mohammed Ikbal Akash Jana Rathin Jana Pradeepta Kumar Sahu Soumen Giri Shubhankar Samanta Source Type: research
