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- Publications (8)
- Molecular recognition (3)
- 3 (2)
- 7-Diaminocholestane (2)
- Chlorotriisopropoxytitanium(IV) (2)
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- Fluorescence (2)
- Patents (2)
- Reductive amination (2)
- 1 (1)
- 1'-Diacetylferrocene (1)
- 2-Aminoethylimidazole Cholestane (1)
- 3-Aminopropylimidazole (1)
- 3a (1)
- 7a-Diarylaminocholestane (1)
- Acridine (1)
- Aminosteroids (1)
- Anion receptor (1)
- Antimicrobial activity (1)
- Aromatic carboxylic acid (1)
- Cholestane-imidazole-Zn ensemble (1)
- Dicarboxylic acid (1)
- Dihydrogen phosphate (1)
- Facial amphiphile (1)
- Fluorescence sensing (1)
- Hydrogen pyrophosphate (1)
- Imidazole (1)
- Imidazolium (1)
- Maleic acid (1)
- One-pot reductive amination (1)
- Oxalic acid (1)
Articles 1 - 10 of 10
Full-Text Articles in Other Chemistry
Receptor For Fluorescence Sensing Of Organic Acid And Method Of Preparation Thereof (유기산 형광 인지 수용체 및 이의 제조방법), Hong Seok Kim, Md Wasi Ahmad
Receptor For Fluorescence Sensing Of Organic Acid And Method Of Preparation Thereof (유기산 형광 인지 수용체 및 이의 제조방법), Hong Seok Kim, Md Wasi Ahmad
Dr. Mohammad Wasi Ahmad (Md Wasi Ahmad)
The invention relates to the receptor it is the novel cholestane -based fluorescence which selectively reacts to the organic acid the pyrene group is bound as the fluorescence having the selectivity in the organic acid the receptor and a manufacturing method thereof in the imidazole -based cholestane introducing the imidazole to more detailed cholestane skeleton and manufacturing method thereof. By showing the organic acid, especially, the oxalic acid and high binding affinity the receptor has the effect that it selectively senses and the receptor can use in the sensing of the oxalic acid whether it is the imidazole -based cholestane …
Pyrene Appended Imidazole Compound And Selective Fluorescence Sensing Of Aromatic Carboxylic Acids Using The Same (파이렌-이미다졸기가 연결된 화합물 및 이를 이용한 방향족 카르복실산의 선택적 형광인지), Hong Seok Kim, Md Wasi Ahmad
Pyrene Appended Imidazole Compound And Selective Fluorescence Sensing Of Aromatic Carboxylic Acids Using The Same (파이렌-이미다졸기가 연결된 화합물 및 이를 이용한 방향족 카르복실산의 선택적 형광인지), Hong Seok Kim, Md Wasi Ahmad
Dr. Mohammad Wasi Ahmad (Md Wasi Ahmad)
The invention relates to the novel compound and the manufacturing method thereof, and the benzoic acid derivative and the salicylic acid derivative composition for detecting using the same. The novel compound of the present invention is comprised of the pyrene and imidazole. And it hydrogen-bonds with the compound which the imidazole part detects. It interacts with the benzene ring and strong π - π of the compound which the pyrene part detects and the fluorescence intensity is changed the aromatic carboxylic acid can be recognized.
Stereoselective Synthesis Of 3,7-Diarylaminocholestanes By Titanium-Mediated Reductive Amination, Md Wasi Ahmad, Hong Seok Kim
Stereoselective Synthesis Of 3,7-Diarylaminocholestanes By Titanium-Mediated Reductive Amination, Md Wasi Ahmad, Hong Seok Kim
Dr. Mohammad Wasi Ahmad (Md Wasi Ahmad)
An efficient method for the synthesis of aryl aminocholestanes, using a chlorotriisopropoxytitanium (IV)-mediated reductive amination reaction of 5a-cholestane-3,7-dione, is reported. A series of 3, 7-diarylaminocholestane derivatives were prepared according to this methodology in up to 98% yield. These compounds were primarily characterized by 1H NMR, 13C NMR, and mass spectrometry.
Selective Fluorescence Sensing Of Salicylic Acid Using A Simple Pyrene Appended Imidazole Receptor, Md Wasi Ahmad, Bo Yeon Kim, Hong Seok Kim
Selective Fluorescence Sensing Of Salicylic Acid Using A Simple Pyrene Appended Imidazole Receptor, Md Wasi Ahmad, Bo Yeon Kim, Hong Seok Kim
Dr. Mohammad Wasi Ahmad (Md Wasi Ahmad)
A simple salicylic acid selective fluorescence receptor 1 was designed by combining 1-pyrenecarboxaldehyde and 1-(3-aminopropyl)imidazole. The selective sensing of salicylic acid resulted in a significant increase in monomer emissions due to the p–p interactions between the benzene and pyrene rings. The nature of the interactions between receptor 1 and salicylic acid was investigated further by 1H NMR spectroscopy, and the energy minimised structure of the complex between receptor 1 and salicylic acid was optimised. Receptor 1 showed the highest binding constant with 5-nitrosalicylic acid among all the aromatic carboxylic acids tested. 5-Nitrosalicylic acid formed a complex with receptor 1 at …
Selective Recognition Of H2po4 By A Cholestane-Imidazole-Zinc Ensemble, Jyoti Ramesh Jadhav, Md Wasi Ahmad, Hong Seok Kim
Selective Recognition Of H2po4 By A Cholestane-Imidazole-Zinc Ensemble, Jyoti Ramesh Jadhav, Md Wasi Ahmad, Hong Seok Kim
Dr. Mohammad Wasi Ahmad (Md Wasi Ahmad)
A new facile amphiphile cholestane-based zinc complex 4 containing a 3-aminopropylimidazole moiety at the 3a and 7a positions of cholestane was designed and synthesized. Recognition selectivity of the new receptor 4 with various anions was assessed by 1H NMR titration. Dihydrogen phosphate showed the highest binding affinity among all the tested anions
A New Acridine-Imidazolium-Based Cholestane Receptor For Anion Sensing, Jyoti Ramesh Jadhav, Md Wasi Ahmad, Hong Seok Kim
A New Acridine-Imidazolium-Based Cholestane Receptor For Anion Sensing, Jyoti Ramesh Jadhav, Md Wasi Ahmad, Hong Seok Kim
Dr. Mohammad Wasi Ahmad (Md Wasi Ahmad)
A new highly selective receptor (3) based on an acridine-imidazolium functionalized cholestane for anion sensing was designed and synthesized. A binding study of 3 with various anions was assessed by UV-vis and fluorescence spectroscopies in dry CH3CN. Receptor 3 showed the highest selectivity toward hydrogen pyrophosphate.
Pyrenyl-Appended Imidazolium Receptor For Selective Fluorescence Sensing Of Oxalic Acid, Md Wasi Ahmad, Sung Hong Kim, Hong Seok Kim
Pyrenyl-Appended Imidazolium Receptor For Selective Fluorescence Sensing Of Oxalic Acid, Md Wasi Ahmad, Sung Hong Kim, Hong Seok Kim
Dr. Mohammad Wasi Ahmad (Md Wasi Ahmad)
A new fluorescent imidazolium-based cholestane receptor 4 bearing a pyrene moiety was synthesized. The binding ability of 4 toward various dicarboxylic acids was examined by UV–vis and fluorescence spectroscopy. Receptor 4 showed the highest binding constant for oxalic acid among all the tested dicarboxylic acids. Oxalic acid formed a complex with 4 with a 1:2 ratio in ethanol.
Ticl(Oipr)3-Mediated One-Pot Reductive Amination Of 1,1'-Diacetylferrocene With Aryl Amines, Md Wasi Ahmad, Sang Yeon Lee, Tae Jeong Kim, Hong Seok Kim
Ticl(Oipr)3-Mediated One-Pot Reductive Amination Of 1,1'-Diacetylferrocene With Aryl Amines, Md Wasi Ahmad, Sang Yeon Lee, Tae Jeong Kim, Hong Seok Kim
Dr. Mohammad Wasi Ahmad (Md Wasi Ahmad)
No abstract provided.
New 2-Aminoethylimidazole-Based Dicarboxylic Acid Receptor Derived From Cholestane, Jyoti Ramesh Jadhav, Md Wasi Ahmad, Hong Seok Kim
New 2-Aminoethylimidazole-Based Dicarboxylic Acid Receptor Derived From Cholestane, Jyoti Ramesh Jadhav, Md Wasi Ahmad, Hong Seok Kim
Dr. Mohammad Wasi Ahmad (Md Wasi Ahmad)
A new facial amphiphile cholestane-based receptor 1 containing a 2-imidazolylethylamino moiety at the 3a and 7a positions of cholestane was synthesized. Recognition selectivity of the new receptor 1 with various dicarboxylic acids was assessed by 1H NMR titration. Maleic acid showed the highest binding constant among all the tested acids
Synthesis Of Facial Amphiphile 3,7-Diamino-5Α-Cholestane Derivatives As A Molecular Receptor, Md Wasi Ahmad, Young Mee Jung, Sharaf Nawaz Khan, Hong Seok Kim
Synthesis Of Facial Amphiphile 3,7-Diamino-5Α-Cholestane Derivatives As A Molecular Receptor, Md Wasi Ahmad, Young Mee Jung, Sharaf Nawaz Khan, Hong Seok Kim
Dr. Mohammad Wasi Ahmad (Md Wasi Ahmad)
A series of facial amphiphiles 3,7-diaminocholestane were synthesized from 3,7-diketocholestane via 2 sequential reductive aminations and anion recognition was evaluated with acetate, chloride, bromide, fluoride and phosphate anions. The stereo-selective reductive amination protocol was utilized to synthesized facial amphiphiles afforded receptors in high yields. The molecular receptor 2 showed the highest binding constant with acetate in a 1:1 ratio.