Microwave assisted phosgenation – alcoholysis using triphosgene

Preparation of Mesoporous Organically Modified Titanium Materials and their Activity in the Oxidation of Cyclohexene

“…TBHP and hydrogen peroxide were employed as oxidants. Dichloromethane and t-butanol were used as solvents in the epoxidation of cyclohexene with TBHP and H 2 O 2 , respectively, based on previously results [28]. Data is summarised in Tables 2 and 3.…”

“…Microwaves have recently been the subject of extensive investigations and a numerous range of applications in organic synthesis can be found in the literature [23][24][25][26][27][28][29]. Microwave irradiation can reduce the time of reaction and the energy consumption in microwave assisted syntheses improving reaction yields and selectivities [30].…”

Gaseous Reactants in Microwave‐Assisted Synthesis

“…Trotzki et al showed that various aliphatic dialkyl carbonates are accessible from microwave-assisted reactions of the alcohols with triphosgene as a replacement for hazardous, gaseous phosgene (COCl 2 ) [45]. Using n-butanol as a model substrate, the influence of catalysts was studied, identifying benzyltriethylammonium chloride as being the most potent.…”

Neat reaction technology for the synthesis of 4-oxo-thiazolidines derived from 2-SH-benzothiazole and antimicrobial screening of some synthesized 4-thiazolidinones

“…The purity of compounds was checked routinely by thin layer chromatography (TLC) using silica gel-G coated Al-plates (0.5 mm thickness, Merck) and spots were visualized by exposing the dry plates to iodine vapor. IR spectra ( max in cm -1 ) were recorded on a Shimadzu FT-IR 8300 spectrophotometer using KBr or the Nujol technique; 1 H NMR spectra were acquired on a Bruker WM 400FT 400 MHz NMR spectrometer using CDCl 3 or DMSO-d 6 as the solvent and TMS as the internal reference (chemical shifts in ppm); 13 C NMR was performed on a Varian AMX 400 (100 MHz) spectrometer using solutions in CDCl 3 and mass spectra were acquired on a Jeol JMS D-300 spectrometer operating at 75 eV. The elemental analysis (C, H, N) of compounds was performed on Carlo Erba-1108 elemental analyzer.…”

“…Under the framework of green chemistry [12][13][14], and following earlier reported applications of MORE [15][16][17][18] chemistry, we now report a novel, environmentally benign approach using a facile, ZnCl 2 -mediated microwave synthesis of 4-thiazolidinones.…”