Copper-Catalyzed C-Arylation and Denitrogenation of Tetrazoles: Domino Synthesis of 1,3-Diaminoisoquinoline Derivatives
作者:Liangliang Shi、Haijun Yang、Yuyang Jiang、Hua Fu
DOI:10.1002/adsc.201201022
日期:2013.4.15
An unexpected copper‐catalyzed sequential C‐arylation and denitrogenation of tetrazoles leading to 1,3‐diaminoisoquinoline derivatives has been developed, and the corresponding 1,3‐diaminoisoquinoline derivatives were obtained in moderate to good yields. The method provides a novel strategy for the synthesis of isoquinoline derivatives containing various functional groups.
Bu<sub>4</sub>NI Catalyzed C–N Bond Formation via Cross-Dehydrogenative Coupling of Aryl Ethers (C<sub>sp3</sub>–H) and Tetrazoles (N–H)
作者:Suresh Rajamanickam、Ganesh Majji、Sourav Kumar Santra、Bhisma K. Patel
DOI:10.1021/acs.orglett.5b02749
日期:2015.11.20
Intermolecular C-N bond formations via cross-dehydrogenative coupling (CDC) of aryl ethers and tetrazoles have been developed under a metal-free condition. In the presence of catalytic amount of tetrabutylammonium iodide (TBAI) and aqueous TBHP, aryl ethers coupled efficiently with tetrazoles to afford hemiaminal ethers. This strategy showed high level of regioselectivity for substrates possessing multiple sp(3) C-H bonds adjacent to the ethereal oxygen.