A cinchona alkaloid derivative catalyzed the asymmetric formal [3+2] cycloaddition of α-aryl isocyanoesters with aldehydes, affording highly substituted 2-oxazolines with good stereoselectivities of up to 18:1 dr and 90% ee.
一种
金鸡纳
生物碱衍
生物催化了δ-芳基
异氰酸酯与醛的不对称形式[3+2]环加成反应,得到了高度取代的 2-
恶唑啉,其立体选择性高达 18:1 dr 和 90% ee。