Ir‐Catalyzed Sulfur‐Directed Vinylic C─H Activation for the Stereoselective Synthesis of 1,3‐Dienes Using Alkynoates
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DOI: 10.1002/ajoc.202500192
Abstract: Vinylic sp2 C─H alkenylation with alkynoates was investigated in the presence of a cationic iridium catalyst using aryl 2‐substituted allyl sulfides as substrates. In the reaction of dimethyl acetylenedicarboxylate, the double bonds were isomerized from… read more here.
Keywords: sulfur directed; vinylic activation; activation stereoselective; directed vinylic ... See more keywords
Sulfur-directed metal-free and regiospecific methyl C(sp3)-H imidation of thioanisoles
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DOI: 10.1016/j.tet.2017.04.054
Abstract: Abstract Regiospecific and direct imidation of the methyl C(sp3)–H bond of thioanisoles is realized under mild and metal-free conditions with N-fluorobis(benzenesulfonyl)imide as an oxidant and nitrogen source. Proposed mechanism suggests that thionium ion intermediates and… read more here.
Keywords: methyl sp3; regiospecific; sulfur directed; metal free ... See more keywords