nonpolar solvents than their oxosquaramide counterparts, and they are excellent catalysts for the unreported, enantioselective conjugate addition reaction of the barbituric acid pharmacaphore to nitroalkenes, delivering the chiral barbiturate derivatives in high yields and high enantioselectivities, even with catalyst loadings as low as 0.05 mol%.
我们报告了一种合成手性
硫代方酰胺的通用方法,手性
硫代方酰胺是一类此前文献中未描述过的双功能催化剂。人们发现
硫代方酰胺比其对应的含氧方酰胺具有更高的酸性,并且在非极性溶剂中的溶解度明显更高,并且它们是
巴比妥酸药效团与硝基烯烃的未报道的对映选择性共轭加成反应的优异催化剂,以高产率和高产率提供手性
巴比妥酸盐衍
生物。即使催化剂负载量低至 0.05 mol%,也具有对映选择性。