TY - JOUR AU - Tosi, Eleonora; Spielmann, Kim; de Figueiredo, Renata Marcia; Campagne, Jean-Marc TI - Copper-Catalyzed Ring Expansion of Vinyl Aziridines under Mild Conditions SN - 0936-5214 SN - 1437-2096 PY - 2021 JO - Synlett JF - Synlett LA - EN VL - 32 IS - 05 SP - 517 EP - 520 DA - 2021/01/05 KW - ring expansion KW - vinyl aziridines KW - pyrrolines KW - copper catalysis KW - heterocycles AB - Vinyl aziridines are versatile starting materials toward ring-expansion transformations. Such processes are widely used to give various medium or larger N-heterocycles of synthetic interest. This letter describes a copper-catalyzed ring expansion of vinyl aziridines to 3-pyrrolines by using a Cu(I) salt [(CuOTf)2·toluene or Cu(MeCN)4·PF6]. In particular, this transformation occurs under mild conditions (THF, rt). PB - Georg Thieme Verlag KG DO - 10.1055/s-0040-1706007 UR - http://www.thieme-connect.de/products/ejournals/abstract/10.1055/s-0040-1706007 ER -