Synthesis of chiral sulfoximines derived from 3-aminoquinazolinones and their catalysis of enantioselective diethylzinc addition to aldehydes
作者:Semistan Karabuga、Murat Cakici、Cavit Kazaz、Ertan Sahin、Hamdullah Kilic、Sabri Ulukanli
DOI:10.1039/c1ob06205k
日期:——
A series of sulfoxides were sulfoximinated using oxidative addition of 3-aminoquinazolinones by lead tetraacetate in the presence of hexamethyldisilazane. They were applied for the first time in catalytic enantioselective addition to aromatic aldehydes with a product enantiopurity (ee) of 92% in the case of 2-methoxybenzaldehyde.
一系列亚砜通过铅四醋酸盐的氧化加成反应与3-氨基喹唑啉酮进行硫氧化胺化。在六甲基二硅氮的存在下,它们首次应用于对芳香醛的催化对映选择性加成,在2-甲氧基苯甲醛的情况下,产物的对映体纯度(ee)达到92%。