Synthesis of 3-aryl-4-methyl-1,2-benzenedisulfonimides, new chiral Brønsted acids. A combined experimental and theoretical study
作者:Margherita Barbero、Stefano Bazzi、Silvano Cadamuro、Lorenzo Di Bari、Stefano Dughera、Giovanni Ghigo、Daniele Padula、Silvia Tabasso
DOI:10.1016/j.tet.2011.05.127
日期:2011.8
a safe Brønsted acid in some acid-catalyzed organic reactions. With the design of new and chiral acid organocatalysts with the structure of 1,2-benzenedisulfonimide in mind, we herein propose a synthesis of 1,2-benzenedisulfonimide derivatives bearing an aryl group in the 3-position with good overall yields. The chirality of these compounds is due to the hinderedrotation of the aryl group (atropisomerism)