2224-37-5Relevant articles and documents
Tetrabutyldideazaporphyrin
Laxner, Jonathan T.,Lash, Timothy D.
, (2020)
McMurry coupling of a dibutylpyrrole diacrylaldehyde afforded an unstable tetrabutyldideazaporphyrin. Although this porphyrin analogue was highly unstable, proton NMR spectroscopy demonstrated that it retained a high degree of diatropic character.
Waste-to-useful: A biowaste-derived heterogeneous catalyst for a green and sustainable Henry reaction
Rajkumari, Kalyani,Das, Diparjun,Pathak, Gunindra,Rokhum, Lalthazuala
, p. 2134 - 2140 (2019/02/05)
Owing to the depletion of resources coupled with increasing waste generation, the conversion of waste biomass to value-added materials has gained interest. Here, we report for the first time the application of Musa acuminata (banana) peel ash (MAPA) as a heterogeneous catalyst for C-C bond formation via a Henry reaction under solvent-free conditions at ambient temperature. The catalyst was well characterized using different analytical techniques like FT-IR, SEM, TEM-EDS, XRD, XRF, XPS, BET and TGA, along with basicity determination by a Hammett indicator test and titration method. An excellent yield of nitroalcohol was obtained within 15-30 minutes. No dehydrated product was observed. The catalyst used in these studies has the advantage of being a waste material and is hence low-cost, easily prepared, recyclable and environmentally friendly. In addition, the use of a biogenic renewable catalyst, its atom economy, and room temperature and solvent-free reaction conditions and the avoidance of column chromatography make the protocol highly significant from green and sustainable chemistry perspectives.
2-OXO-1,3-OXAZOLIDINYL IMIDAZOTHIADIAZOLE DERIVATIVES
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Page/Page column 22, (2019/02/02)
The present invention relates to 2-oxo-1,3-oxazolidinyl imidazothiadiazole derivatives, processes for preparing them, pharmaceutical compositions containing them and their use as pharmaceuticals.