Md. Monarul Islam, Zhen Hu, Qingsong Wang, Carl Redshaw et al.
Pyrene shows very weak or quenched fluorescence in the solid state, but it is possible to turn it to a bright solid emitter by using aggregation-induced emission (AIE) strategies.
Rezaul Karim, Kamrun Nahar, Fatema Tuz Zohora, Md. Monarul Islam et al.
The food wastes have significant amount of functional ingredients that have valorization potential. Citrus limon (lemon), Mangifera Indica (mango) peels are maximally used as waste in food industries in all over the worlds. This work aimed to extract pectin from mango and pectin peels at different c...
Md. Monarul Islam, Md. Rashedul Islam, S M Mahmudul Hassan, Md. Rezaul Karim et al.
Water-soluble carboxymethyl chitin (CMCT) 1a–b, and chitosan (CMCS) 2a–b derivatives were synthesized and evaluated for antibacterial activity. The synthesized compounds were characterized by Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD). Thermal properties of the synth...
Zhen Hu, Haoke Zhang, Yan Chen, Qingsong Wang et al.
There has been growing interest in the design and development of tunable light emissive materials that have potential applications in lighting and displays. In this paper, we have incorporated the aggregation induced emission (AIE) with excited-state intramolecular proton transfer (ESIPT) process in...
Md. Wahidul Islam, Md. Monarul Islam, Rabeya Akter, Tayebur Rahman Limon et al.
Abstract Pyrimidine‐based derivatives have attracted a lot of interest in heterocyclic chemistry due to its versatile structure and diverse biological activities. This study provides a comprehensive overview of synthetic strategy of different pyrimidine ring and highlights their biological importanc...
Shajahan Siraj, Md. Monarul Islam, Prokash Chandra Das, Shah Md. Masum et al.
Chitosan-charcoal composite was applied as a media to treat tannery effluent. The composite was prepared by a simple solution-evaporation method and the morphology of the prepared composite was characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Adsorption of chromium (C...
Bikash Dev Nath, Md. Monarul Islam, Md Rezaul Karim, Shofiur Rahman et al.
Abstract Schiff‐base derivatives are widely used organic compounds and their metal complexes have been drawing much attention to chemists due to interesting structural features and unique properties. The presence of nitrogen containing imine groups (−C=N−) in Schiff‐bases as well as in their metalli...
Md. Monarul Islam, Shah Md. Masum, Khandaker Rayhan Mahbub
Antimicrobial properties of chitosan extracted from indigenous shrimp processing waste were determined against one gram-negative (Salmonella Paratyphi) and one gram-positive bacterium (Staphylococcus aureus) in vitro. The antimicrobial activities of chitosan were explored by calculation of the Minim...
Md. Monarul Islam, Thamina Akther, Yusuke Ikejiri, Taisuke Matsumoto et al.
Synthesis of highly flexible calix[3]benzofurans; effects of substituent groups on calix[3]benzofuran conformations were studied by DFT computational methods.
Thamina Akther, Md. Monarul Islam, Taisuke Matsumoto, Junji Tanaka et al.
Md. Monarul Islam, Thamina Akther, Shofiur Rahman, Paris E. Georghiou et al.
Abstract Polymethyl substituted [3.3]metacyclophanes (MCPs) 4 a–d , were synthesized by the TosMIC coupling method followed by Wolff–Kishner reduction of the corresponding polymethyl‐substituted [3.3]MCP‐2,11‐diones ( 3 a–d ). 1 H NMR spectroscopy reveals that both 5,6,7,14,16‐pentamethyl[3.3]MCP‐2,...
Thamina Akther, Md. Monarul Islam, Shofiur Rahman, Paris E. Georghiou et al.
A series of syn- and anti-[2.n]metacyclophan-1-enes have been prepared in good yields by McMurry cyclizations of 1,n-bis(5-tert-butyl-3-formyl-2-methoxyphenyl)alkanes. Significantly, acid catalyzed rearrangements of [2.n]metacyclophan-1-enes afforded [n.1]metacyclophanes in good yield. The ratios of...
Md. Monarul Islam, Paris E. Georghiou, Shofiur Rahman, Takehiko Yamato
Calixarene-analogous metacyclophanes (CAMs) are a special class of cyclophanes that are cyclic polyaromatic hydrocarbons containing three or more aromatic rings linked by one or more methylene bridging groups. They can be considered to be analogues of calixarenes, since, in both types of molecules, ...
Md. Monarul Islam, Chuan‐Zeng Wang, Xing Feng, Shofiur Rahman et al.
Abstract [3.1.1]Metacyclophane ([3.1.1]MCP) 6 a containing two benzofuran rings was obtained by treatment of [3.3.3]MCP‐dione 5 with trimethylsilyl iodide. The precursor 5 was synthesized using ( p ‐tolylsulfonyl)methyl isocyanide (TosMIC) as the cyclization reagent. The 1 H‐NMR spectrum of 6 a at r...
Thamina Akther, Md. Monarul Islam, Taisuke Matsumoto, Junji Tanaka et al.
Bromination of 5,21‐di‐ tert ‐butyl‐8,24‐dimethoxy‐1,2‐dimethyl[2.10]metacyclophan‐1‐ene (MCP‐1‐ene; 1 ) with benzyltrimethylammonium tribromide exclusively afforded 1,2‐bis(bromomethyl)‐5,21‐di‐ tert ‐butyl‐8,24‐dimethoxy[2.10]MCP‐1‐ene ( 2 ). Debromination of 2 with Zn and AcOH in CH 2 Cl 2 soluti...