Electrosynthesis of β‐Acyloxy‐γ‐Selenyl Amines via Migratory Oxyselenation of
<i>N</i>
‐Acyl Allylamines
作者:Kejun Lin、Jianyong Lan、Tingshun Zhu
DOI:10.1002/adsc.202200597
日期:2022.10.18
generation of electrophilic selenium cation, followed by electrophilic addition to the unactivatedalkene, and successive water promoted intramolecular acyl migration. The reactions gave the products in up to 98% yield with controllable regio- and diastereoselectivities. Different chemoselectivity towards cyclization products was also viable with N-Boc and N-Cbz substrates. Both batch chemistry and flow
Cobalt‐Catalyzed Cascade Reaction of Ynamides and 1,3‐Dicarbonyl Compounds for Selective Synthesis of Differently Sized
<i>N</i>
‐Heterocycles
作者:Biao Zhang、Xu‐Heng Yang、Jian Huang、Cheng‐an Tao、Jianfang Wang
DOI:10.1002/adsc.202201002
日期:2023.3.7
manifold with various 1,3-dicarbonylcompounds and halogenated N-allyl ynamides was accomplished under alkaline reaction conditions, facilitating the synthesis of differently sized N-heterocycles. A large array of products was prepared to demonstrate the selective synthesis of N-heterocycles of different ring sizes (5-, 6-, and 7-membered rings) via cobalt catalysis. The reaction has broad substrate