Data-Rich Experimentation Enables Palladium-Catalyzed Couplings of Piperidines and Five-Membered (Hetero)aromatic Electrophiles
作者:Aaron C. Sather、Theodore A. Martinot
DOI:10.1021/acs.oprd.9b00233
日期:2019.8.16
palladium-catalyzed C–Ncross-coupling methodology, high-throughput experimentation was used to identify a catalyst capable of fusing piperidine-based nucleophiles with five-membered (hetero)aromatic bromides. A decomposition pathway for the standard electrophile was found, and a base screen was used to identify conditions that suppress this undesired transformation. Building on this, systematic optimization using
Spiro piperidines. I. Synthesis of spiro[isobenzofuran-1(3H), 4'-piperidines] and spiro[isobenzofuran-1(3H), 3'-piperidines]
作者:Adrian Marxer、Herman R. Rodriguez、Joseph M. McKenna、Hsin Mei Tsai
DOI:10.1021/jo00898a010
日期:1975.5
1,3-Dihydrospiro[isobenzofuran]s and derivatives thereof
申请人:American Hoechst Corporation
公开号:US03962259A1
公开(公告)日:1976-06-08
Novel substituted 1,3-dihydrospiro[isobenzofuran]s and methods of preparing the same are described. These compounds are useful as tranquilizers, analgetic agents and intermediates therefor.