The crude product was purified on a silica-gel column using a mixture of petroleum ether and ethyl acetate, yielding light yellow solid (yield: 50%). Structural analysis: 1 H NMR (300 MHz, CDCl3) data δ 7.88 (d, J = 8.7 Hz, 2H), 7.69 (d, J = 8.2 Hz, 2H), 7.11 (d, J ...
tallized from petroleum ether to yield black crystals of [Cu(CsHIIN2)(CfI-IfNO)]. Analysis: calculated forIntroduction. Crystal structures of several bis(2-pyrro- CI4HITCuN3O, C: 54.81, H: 5.55, N: 13.70,lylrnethylenamine)-metal complexes, prepared by the Cu:20.71%. Found, C:54.49,...
et al. Cytotoxic activity and composition of petroleum ether extract from Magydaris tomentosa (Desf.) WDJ Koch (Apiaceae). Molecules 20, 1571–1578 (2015). Article Google Scholar Musa, M. A., Cooperwood, J. S. & Khan, M. O. A Review of Coumarin Derivatives in Pharmacotherapy of ...
Layer-structured Ruddlesden–Popper (RP) perovskites (RPPs) with decent stability have captured the imagination of the photovoltaic research community and bring hope for boosting the development of perovskite solar cell (PSC) technology. However, two-dimensional (2D) or quasi-2D RP PSCs are encount...
Polyether ether ketone (PEEK) • Rod form • Tough • Spring function • Dynamic AFOS Kydex • Composite of acrylic and polyvinyl chloride (PVC) • Reinforcing material • Thermoforming • Outstanding toughness • Supporting material in Cervical collars (neck orthosis) • Spinal ortho...
The stem bark of Garcinia huillensis grown in Zaïre and used in centralAfrican traditional medicine has been subjected to a bioassay-guided fractionation. The chemotherapeutically active petroleum ether extract afforded fatty acids, aliphatic alcohols, triterpenes and a polyisoprenylated benzophenone, ...
The light yellow product was purified by crystallization from the mixtured solvents of petroleum ether and diethyl ether. Pure colorless single crystals, suitable for X-ray structure analysis, were obtained from dichloromethane (m.p. 122-124°C). Experimental details AllΗ atoms were located from ...
The reaction mixture was poured over crushed ice and water (200 ml), and the two-phase system was extracted with several portions of petroleum ether. After the combined extract was washed several times with cold water, the organic layer was dried and concentrated. Purification of the crude ...
(ReceivedDecember2,1994,CSD-No.402058)C6CllSourceofmaterial:ThecompoundwaspreparedfromphosgeneandCa-ethyl-(,S)-phenylalanine.Crystallizationfromethylaceta-te-diethylether-petroleumether.M.pt.:416-417K.TheN-carboxyanhydride(NCA)ringgeometrycompareswellwithpublishedaminoacidNCA's(seeréf.1andreferencesthere-...
As mentioned earlier, due to presence of organic sulfur in Assam coal, they are very much amenable to liquefaction and the tests were carried out by Central Fuel Research Institute, Dhanbad in 1960 although found technically feasible, was not pursued further due to low price petroleum oil at th...