96122-61-1Relevant articles and documents
One-pot ortho-amination of aryl C-H bonds using consecutive iron and copper catalysis
Henry, Martyn C.,McGrory, Rochelle,Faggyas, Réka J.,Mostafa, Mohamed A. B.,Sutherland, Andrew
, p. 4629 - 4639 (2019/05/17)
A one-pot approach for ortho-coupling of arenes with non-actived N-nucleophiles has been developed using sequential iron and copper catalysis. Regioselective ortho-activation of anisoles, anilines and phenols was achieved through iron(iii) triflimide catalysed iodination, followed by a copper(i)-catalysed, ligand-assisted coupling reaction with N-heterocycle, amide and sulfonamide-based nucleophiles. The synthetic utility of this one-pot, two-step method for the direct amination of ortho-aryl C-H bonds was demonstrated with the late-stage functionalisation of 3,4-dihydroquinolin-2-ones. This allowed the preparation of a TRIM24 bromodomain inhibitor and a series of novel analogues.
Dynamic stereochemistry transfer in a transannular aldol reaction: Total synthesis of hypocrellin A
O'Brien, Erin M.,Morgan, Barbara J.,Kozlowski, Marisa C.
supporting information; experimental part, p. 6877 - 6880 (2009/04/07)
(Chemical Equation Presented) A dynamic approach: The key step in the total synthesis of hypocrellin A involves a potentially biomimetic 1,8-diketone aldol reaction, which constructs the seven-membered ring. The helical configuration is established first
On the Synthesis of Tiliacora Alkaloids, II: Synthesis of the Asymmetrical Biphenyl Derivative
Pachaly, Peter,Schaefer, Michael
, p. 483 - 487 (2007/10/02)
The biphenyl derivatives S-1 and S-3 were obtained by mixed Ullmann reaction of the phenylacetic esters 3, 4 and 5.Because they contain selectively removable protective groups for the carboxyl functions, S-1 and S-3 are proper intermediates for the constitution selective reaction with the former described asymmetrical dibenzo-1,4-dioxin derivative K.