Articles written in Journal of Chemical Sciences
Volume 123 Issue 5 September 2011 pp 703-708
Rapid and highly efficient trimethylsilylation of alcohols and phenols with hexamethyldisilazane (HMDS) catalysed by
Structurally diverse alcohols and phenols were trimethylsilylated in clean and efficient reactions with hexamethyldisilazane (HMDS) in the presence of a catalytic amount of I2 generated
Volume 124 Issue 2 March 2012 pp 501-508
Mohammad Ali Zolfigol Ardeshir Khazaei Abdolkarim Zare Mohammad Mokhlesi Tahereh Hekmat-Zadeh Alireza Hasaninejad Fatemeh Derakhshan-Panah Ahmad Reza Moosavi-Zare Hassan Keypour Ahmad Ali Dehghani-Firouzabadid Maria Merajoddin
Silica-functionalized sulfonic acid (SFSA) and sulfuric acid-modified polyethylene glycol-6000 (PEG-OSO3H) efficiently catalysed one-pot multi-component condensation of enolizable ketones or alkyl acetoacetates with arylaldehydes, acetonitrile and acetyl chloride to afford the corresponding 𝛽-acetamido ketone or ester derivatives in high to excellent yields and in relatively short reaction times. Moreover, in this work, some novel 𝛽-acetamido carbonyl compounds (i.e., one complex structure) are synthesized.
Volume 124 Issue 5 September 2012 pp 1127-1135
Functionalization of oxidized single-walled carbon nanotubes (SWCNTs) by a zwitterionic interaction (COO−NH$^+_3$) between protonated amine on crown ether and an oxyanion from a carboxylic acid group on SWCNT has been described. This ionic interaction has led to a considerable increase in the solubility of SWCNTs in both organic and aqueous solvents such as ethanol, dimethyl sulphoxide, dimethylformamide, and H2O. The highest solubility was attained in DMF and DMSO. The ionic bonded 4-benzo-9-crown-3 ether allowed the hosting of Li+. The ionic bond of crown ether (4-(benzo-9-crown-3)) to SWCNT was identified and confirmed by infrared spectroscopy, transmission electron-microscopy, atomic force microscopy and thermogravimetric analysis methods.
Volume 135, 2023
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