A Soluble Copper(I) Source and Stable Salts of Volatile Ligands for Copper-Catalyzed C–X Couplings
摘要:
A stable adduct of Cul with Bu4NI, soluble in organic solvents, has been identified as an effective catalyst for copper-catalyzed C-N and C-O couplings. In addition, stable nonhygroscopic salts of some high performance ligands (diamine MsOH salts/CuX and copper(II) diketonates) were shown to be of similar and sometimes greater reactivity compared to the literature reagents for these couplings. Furthermore, these more robust conditions result in more reproducible results.
A Soluble Copper(I) Source and Stable Salts of Volatile Ligands for Copper-Catalyzed C–X Couplings
作者:Peter E. Maligres、Shane W. Krska、Peter G. Dormer
DOI:10.1021/jo300905w
日期:2012.9.7
A stable adduct of Cul with Bu4NI, soluble in organic solvents, has been identified as an effective catalyst for copper-catalyzed C-N and C-O couplings. In addition, stable nonhygroscopic salts of some high performance ligands (diamine MsOH salts/CuX and copper(II) diketonates) were shown to be of similar and sometimes greater reactivity compared to the literature reagents for these couplings. Furthermore, these more robust conditions result in more reproducible results.
Vinylene Carbonate as Latent Formylmethyl Surrogate: The Expediency of Ruthenium(II) Catalysis in Accessing Arylacetaldehydes, Arylacetates and Acetals
作者:Dolly David Thalakottukara、Thirumanavelan Gandhi
DOI:10.1002/ejoc.202300847
日期:2024.2.5
Herein, we report a Ru(II)-catalyzed additive controlled direct formylmethylation and sequential dehydrogenative esterification of phthalazinones to access arylacetaldehydes, arylacetates, and acetals using vinylene carbonate as a C2 synthon. The reaction mechanism is elucidated using various control experiments and confirmation of possible intermediates by mass spectrometry.