Heterocycles via intramolecular platinum-catalyzed propargylic substitution
摘要:
We report a Pt(II)-catalyzed cyclization of nucleophile-tethered propargylic acetates yielding substituted heterocycles containing multiple heteroatoms including morpholines, dioxanes, and sulfamates with high cis-selectivity. (C) 2011 Elsevier Ltd. All rights reserved.
Heterocycles via intramolecular platinum-catalyzed propargylic substitution
摘要:
We report a Pt(II)-catalyzed cyclization of nucleophile-tethered propargylic acetates yielding substituted heterocycles containing multiple heteroatoms including morpholines, dioxanes, and sulfamates with high cis-selectivity. (C) 2011 Elsevier Ltd. All rights reserved.
Copper-Catalyzed Propargylic Reduction with Diisobutylaluminum Hydride
作者:Yuna Kim、Hanseul Lee、Sunga Park、Yunmi Lee
DOI:10.1021/acs.orglett.8b02413
日期:2018.9.7
A mild and efficient method for the synthesis of allenes through selective copper-catalyzed hydride addition to propargylic chlorides using commercially available diisobutylaluminum hydride has been developed. This transformation, which is promoted by a readily accessible N-heterocyclic carbene–copper complex, provides a wide range of new and versatile functionalized allenes in good to excellent yields