Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, Non-U.S. Gov’t, Nature Protocols called Solid-state 31P NMR mapping of active centers and relevant spatial correlations in solid acid catalysts, Author is Yi, Xianfeng; Ko, Hui-Hsin; Deng, Feng; Liu, Shang-Bin; Zheng, Anmin, which mentions a compound: 676-96-0, SMILESS is CP(C)(C)=O, Molecular C3H9OP, Application of 676-96-0.
Solid acid catalysts are used extensively in various advanced chem. and petrochem. processes. Their catalytic performance (namely, activity, selectivity, and reaction pathway) mostly depends on their acid properties, such as type (Bronsted vs. Lewis), location, concentration, and strength, as well as the spatial correlations of their acid sites. Among the diverse methods available for acidity characterization, solid-state NMR (SSNMR) techniques have been recognized as the most valuable and reliable tool, especially in conjunction with suitable probe mols. that possess observable nuclei with desirable properties. Taking 31P probe mols. as an example, both trimethylphosphine (TMP) and trimethylphosphine oxide (TMPO) adsorb preferentially to the acid sites on solid catalysts and thus are capable of providing qual. and quant. information for both Bronsted and Lewis acid sites. This protocol describes procedures for (i) the pretreatment of typical solid acid catalysts, (ii) adoption and adsorption of various 31P probe mols., (iii) considerations for one- and two-dimensional (1D and 2D, resp.) NMR acquisition, (iv) relevant data anal. and spectral assignment, and (v) methodol. for NMR mapping with the assistance of theor. calculations Users familiar with SSNMR experiments can complete 31P-1H heteronuclear correlation (HETCOR), 31P-31P proton-driven spin diffusion (PDSD), and double-quantum (DQ) homonuclear correlation with this protocol within 2-3 d, depending on the complexity and the accessible acid sites of the solid acid samples.
Here is just a brief introduction to this compound(676-96-0)Application of 676-96-0, more information about the compound(Trimethylphosphineoxide) is in the article, you can click the link below.
Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem