91121-63-0Relevant academic research and scientific papers
Chiral N-heterocyclic carbene ligands for asymmetric catalytic oxindole synthesis
Jia, Yi-Xia,Hillgren, J. Mikael,Watson, Emma L.,Marsden, Stephen P.,Kuendig, E. Peter
supporting information; scheme or table, p. 4040 - 4042 (2009/03/11)
The Pd-catalysed asymmetric intramolecular α-arylation of amide enolates containing heteroatom substituents gives chiral 3-alkoxy or 3-aminooxindoles in high yield and with enantioselectivities up to 97% ee when a new chiral N-heterocyclic carbene ligand is used. The Royal Society of Chemistry.
Chemoselective deprotection of benzyl esters in the presence of benzyl ethers, benzyloxymethyl ethers and N-benzyl groups by catalytic transfer hydrogenation
Bajwa
, p. 2299 - 2302 (2007/10/02)
-COOBn, -PO(OH)OBn, -O-CBz and N-CBz groups are efficiently and chemoselectively deprotected in the presence of Bn and BOM ethers and N-Bn groups by hydrogenolysis under catalytic transfer hydrogenation using 10% palladium on carbon as the catalyst and cyclohexadiene as the hydrogen donor.
THE STUDIES OF METAL ION CATALYZED CARBON-HYDROGEN INSERTION OF α-ALKOXY-α'-DIAZOKETONES DERIVED FROM MANDELIC AND LACTIC ACIDS
Hon, Yung-Son,Chang, Rong-Chi,Chau, Tay-Yuan
, p. 1745 - 1750 (2007/10/02)
The cupric acetylacetonate is the best catalyst to induce the carbon-hydrogen inserted reaction for the α-alkoxy-α'-diazoketones derivatives (5 and 6).The side reactions such as aromatic carbon-hydrogen insertion and rearrangement could be prevented.
Process for preparing aromatic acetic acid
-
, (2008/06/13)
There are disclosed processes for preparing an aromatic acetic acid by the reaction of an aromatic aldehyde with a combination of a trihalomethane and an alkanethiol, and by the reaction of an alcohol derivative (2,2,2-trihalo-1-arylethanol) with an alkanethiol, in the presence of a base in a mixed medium of water and an aprotic polar solvent.
