Intramolecular Nucleophilic Deselenenylation Reactions Promoted by Benzeneselenenyl Triflate. Stereospecific Synthesis of Vicinal Amino Alcohol Precursors
作者:Marco Tingoli、Lorenzo Testaferri、Andrea Temperini、Marcello Tiecco
DOI:10.1021/jo960866g
日期:1996.1.1
nitrogen nucleophilic substituents, readily undergoes intramolecular nucleophilic displacement to afford azido-substituted heterocyclic compounds. This intramolecular substitution occurs with inversion of configuration at the carbon atom bearing the selenium atom. Starting from acetamido selenides and carbamato selenides, a stereocontrolled synthesis of the vicinal amino alcohol precursor oxazolines and
用亲电子亚硒化剂活化后,邻位叠氮基硒化物的苯基硒基含有内部的氧或氮亲核取代基,容易发生分子内亲核取代,得到叠氮基取代的杂环化合物。这种分子内取代发生在带有硒原子的碳原子上的构型反转的情况下。从乙酰氨基硒化物和氨基甲酸酯硒化物开始,已经开发了邻位氨基醇前体恶唑啉和恶唑烷-2-酮的立体控制合成。