In the production of a β-phenylserine by reacting glycine with a benzaldehyde in the presence of an alkali and treating the product with an acid, a novel process which comprises carrying out the reaction in a mixed solvent composed of water and a hydrophobic organic solvent. The presence of...
Main Group Metal Halide Complexes with Sterically Hindered Thioureas. Part 10. Complexes of Antimony(V) Chloride and 1,3-Dimethyl-2(3H)-imidazolethione. Williams,D.J,Vanderveer,D,Jones,R.L,Menaldino,D.S."Main group metal halide complexes with sterically hindered thioureas Ⅺ.Complexes of an...
In soil-pore water the nature of the functional groups that form a chemical compound influence the characteristics of this compound and its ability to bind with the soil constituents. Functional groups are considered the atoms or bonds within molecules, which determine the characteristic chemical reac...
MULTIPLE BONDS BETWEEN MAIN GROUP ELEMENTS AND TRANSITION METALS .151. TRIOXORHENIUM(VII) ALKOXIDE COMPLEXES The reaction of Me(3)SiOReO(3) with trimethylsilyl ethers Me(3)SiOR (R = Me, CMe(2)CMe(2)OMe, CMe(2)CMe(2)OH CMe(2)CMe(2)OSiMe(3)) yields the trioxorhenium... Herrmann ...
Silanols react readily with oxygen- or nitrogen-containing compounds such as glycols, water, alcohols, amines, divalent metal salts and with each other. Among these reactions, that with soluble zinc is the major source of silica's unique compounding characteristics. The reaction, as shown in ...
A process for refining organic compositions of platinum group metals, which comprises treating such a composition in a reaction fluid comprising supercritical water and a source of oxygen, allowing at least the organic components of the composition to be oxidized and recovering a precious metal oxide...
Nat. Chem. 1, 193–205 (2009). This is an excellent review of PGF synthesis with valuable historical insight. CAS PubMed Google Scholar Saicic, R. N. Protecting-group-free syntheses of natural products and biologically active compounds. Tetrahedron 70, 8183–8218 (2014). CAS Google ...
acid mixture togive almost quantitative yields of the rhodium(1) halocarbonyl anions [Rh(CO)2X2]- (X = Cl,Br).It has been shown that thereaction proceeds by the intermediate formation of the rhodium(111)halocarbonyl anions [Rh(CO)X5]followed by slow reduction to the rhodium(1) complexes...
there is nothing about the ribosome active site that would lead to such a perturbation. All unexplained density near the reaction center appears to be water, including one molecule positioned within theoxyanion hole[29•]. Mechanistic models must therefore explain the role of the 2′-OH without...
3A).38 In the reaction of HCHO with (H2O)2, a double proton transfer process is observed. The additional water acts as a homogeneous catalyst to promote proton transfer from H2O to HCHO. The potential energy barrier is reduced to 23.1 kcal/mol (Fig. 3B).38 Even though the activation ...