S,O-Ligand-Promoted Pd-Catalyzed C-H Olefination of Thiophenes
Sign Up to like & getrecommendations! Published in 2019 at "European Journal of Organic Chemistry"
DOI: 10.1002/ejoc.201900077
Abstract: SO good. An efficient PdII catalyzed C−H olefination of thiophenes has been developed using an easily accessible bidentate S,O‐ligand. The catalytic system promotes the C‐2 olefination in a wide range of thiophenes including 3‐substituted thiophenes,… read more here.
Keywords: ligand promoted; olefination thiophenes; promoted catalyzed; chemistry ... See more keywords
Chromium-catalyzed olefination of arylaldehydes with haloforms assisted by 2,3,5,6-tetramethyl-N,N'-bis(trimethylsilyl)-1,4-dihydropyrazine.
Sign Up to like & getrecommendations! Published in 2023 at "Chemical communications"
DOI: 10.1039/d2cc06104j
Abstract: Chromium-catalyzed olefination of arylaldehydes with haloforms was achieved using 2,3,5,6-tetramethyl-N,N'-bis(trimethylsilyl)-1,4-dihydropyrazine (1a) as an organic reducing agent, giving β-halostyrene derivatives in a trans-selective manner. The reaction required no metal powders, such as zinc and manganese, as… read more here.
Keywords: arylaldehydes haloforms; olefination arylaldehydes; chromium catalyzed; bis trimethylsilyl ... See more keywords