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 hindered rotation of the aryl group (atropisomerism)
我们最近报道了在某些酸催化的有机反应中,催化量使用1,2-苯二磺酰亚胺作为安全的布朗斯台德酸。考虑到设计具有1,2-苯二磺酰亚胺结构的新型手性酸有机催化剂,我们在本文中提出了以良好的总收率合成在3位带有芳基的1,2-苯二磺酰亚胺衍生物。这些化合物的手性是由于芳基的旋转受阻(阻转异构)。我们解析了这些化合物之一的阻转异构体。