The preparation of a ketone from a phosphorane and a nitrile is described. The workup conditions are mild, and the yields are high. The unreacted starting materials can easily be recovered.doi:10.1002/chin.200543079Taber, DFUniv DelawareCai, L...
The same treatment of aromatic bromides bearing electron-withdrawing groups, such as ester, nitrile, ketone, and nitro groups with i-PrMgCl·LiCl or PhMgCl instead of Mg, also provided the corresponding diaryl and alkyl aryl ketones in good yields. The above methods are simple and practical ...
et al. The uncommon reactivity of dihapto-coordinated nitrile, ketone, and alkene ligands when bound to a powerful π-base. Organometallics 25, 5051–5058 (2006). Article CAS Google Scholar Arashiba, K. et al. Electrophilic O-methylation of a terminal nitrosyl ligand attained by an early...
Disulfides are widely found in natural products and find a wide range of applications in life sciences, materials chemistry and other fields. The preparation of disulfides mainly rely on oxidative couplings of two sulfur containing compounds. This strate
PREPARATION OF PHTHALAZINONE 优质文献 相似文献Preparation of poly(phthalazinone ether sulfone ketone)s ultrafiltration membrane Poly(phthalazinone ether sulfone ketone)s (PPESK) has high glass transition temperatures over the range 263 to 305 ℃,and excellent comprehensive propertie... ...
1. Process for the preparation of a ketone comprising reacting an unsaturated compound of the formula ##STR14## wherein R1, R2 and R3 are identical or different and represent hydrogen or an optionally substituted C1-12 aliphatic, C3-18 cycloaliphatic, C6-18 araliphatic with C1-6 in the ali...
In this process, formaldehyde is reacted with the nitrile of the general formula (VI) is a solvent in the presence of equimolar amounts of a strong acid in a temperature range between 30° and 100° C., preferably at 50°-60° C. The amidomethylium ion thereby formed, of the formul...
Triindolyl‐methane, sowie Aldehyde, Ketone, Ketonsäure‐ester und Ketonsäure‐nitrile substituierter Indole Diindolylmethane (), derived from in cruciferous vegetables, causes growth arrest and of cells in vitro. also induces () stress, and thapsigargin, a specif... H Fischer,K Pistor - ...
Use of polyarylene ether ketone powder in a powder-based tridimensional tool-less method of manufacturing and shaped articles obtained therefrom Polymer powder (I), useful in layerwise working procedure, where selective ranges of the respective powder layer is melted by electromagnetic energy, comprises...
3. The 1,4-diketo compounds of the formula I according to the invention (L=--C(O)CH2CH2C(O)--) can be prepared by reacting a chloroethyl ketone of the formula XI, ##STR13## where A and R1--R5have the abovementioned meanings, with a suitable base to give a vinyl ketone of the...