20593-63-9Relevant articles and documents
-
Ueno,Y. et al.
, p. 3753 - 3756 (1978)
-
Phenyl Silicates with Substituted Catecholate Ligands: Synthesis, Structural Studies and Reactivity
Levernier, Etienne,Jaouadi, Khaoula,Zhang, Heng-Rui,Corcé, Vincent,Bernard, Aurélie,Gontard, Geoffrey,Troufflard, Claire,Grimaud, Laurence,Derat, Etienne,Ollivier, Cyril,Fensterbank, Louis
supporting information, p. 8782 - 8790 (2021/05/27)
While the generation of aryl radicals by photoredox catalysis under reductive conditions is well documented, it has remained challenging under an oxidative pathway. Because of the easy photo-oxidation of alkyl bis-catecholato silicates, a general study of phenyl silicates bearing substituted catecholate ligands has been achieved. The newly synthesized phenyl silicates have been fully characterized, and their reactivity has been explored. It was found that, thanks to the substitution of the catecholate moiety, notably with the 4-cyanocatecholato ligand, the phenyl radical could be generated and trapped. Computational studies provided a rationale for these findings.
Synthesis of β2,2-Amino Esters via Rh-Catalysed Regioselective Hydroaminomethylation
Cunillera, Anton,Ruiz, Aurora,Godard, Cyril
supporting information, p. 4201 - 4207 (2019/08/01)
The synthesis of β2,2-amino esters was successfully achieved via Rh-catalysed regioselective hydroaminomethylation of methyl methacrylate with secondary amines using the neutral precursor [Rh(acac)(CO)2]. In this process, the presence of molecular sieves revealed crucial in order to access the final amino ester. For the synthesis of products containing aniline derivatives, the use of the cationic precursor [Rh(COD)2]BF4 and MeCgPPh phosphine as ligand was necessary in a mixture of toluene/DCE as solvent. Effects of the steric and electronic properties of the amines were observed during this study. Interestingly, poisoning effect of CO in the hydrogenation of the imine intermediate was observed when benzyl amine was used. (Figure presented.).
