Regioselective Annulation of 5-(1-Alkenyl)- and 5-Vinyl-1,3-benzodioxoles with 3-Chloro-3-cyclobutene-1,2-dione. Synthesis of 3,4-Dihydrocyclobuta[5,6]- naphtho[2,3-d][1,3]dioxole-1,2-diones and Cyclobuta[6,7]naphtho[2,3-d][1,3]dioxole- 1,2-diones
Regioselective Annulation of 5-(1-Alkenyl)- and 5-Vinyl-1,3-benzodioxoles with 3-Chloro-3-cyclobutene-1,2-dione. Synthesis of 3,4-Dihydrocyclobuta[5,6]- naphtho[2,3-d][1,3]dioxole-1,2-diones and Cyclobuta[6,7]naphtho[2,3-d][1,3]dioxole- 1,2-diones
Ir-Catalyzed Distal Branch-Selective Hydroarylation of Unactivated Internal Alkenes with Benzanilides via C–H Activation along with Consecutive Isomerization
We herein report a synergistic strategy of C–Hactivation and consecutive isomerization catalyzed by an Ir catalyst to selectively obtain branched isomers as C–H alkylated products of benzanilide derivatives. A well-tuned ligand and a directing group are crucial to achieve this selectivity. The scope of this reaction is demonstrated by the use of a variety of substituents and complex molecules.
Regioselective Annulation of 5-(1-Alkenyl)- and 5-Vinyl-1,3-benzodioxoles with 3-Chloro-3-cyclobutene-1,2-dione. Synthesis of 3,4-Dihydrocyclobuta[5,6]- naphtho[2,3-d][1,3]dioxole-1,2-diones and Cyclobuta[6,7]naphtho[2,3-d][1,3]dioxole- 1,2-diones
作者:Arthur H. Schmidt、Gunnar Kircher、Christian Kuenz、Steffen Wahl、Markus W. Hendriok