Nickel-catalyzed cross-coupling of organoaluminum reagents with alkynylhalides for the synthesis of symmetrical and unsymmetrical conjugated 1,3-diynes derivatives
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Organometallic Chemistry"
DOI: 10.1016/j.jorganchem.2019.121040
Abstract: Abstract We describe a convenient method for the synthesis of symmetrical and unsymmetrical conjugated 1,3-diynes from cross-coupling reactions of organoaluminum with alkynylhalides: The cross-coupling reaction of organoaluminum (0.75 mmol) with alkynylhalides (0.5 mmol) mediated by Ni(acac)2 (5 mol%)/DPPE(10 mol%)… read more here.
Keywords: conjugated diynes; synthesis symmetrical; unsymmetrical conjugated; symmetrical unsymmetrical ... See more keywords
Synthesis of symmetrical / unsymmetrical thiosulfonates through the disproportionate coupling reaction of sulfonyl hydrazide mediated by phosphomolybdic acid
Sign Up to like & getrecommendations! Published in 2021 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2020.152757
Abstract: Abstract Phosphomolybdic acid (H3PMo12O40) is reported as a green low-cost catalyst for the synthesis of symmetrical / unsymmetrical thiosulfonates via the disproportionate coupling reaction of sulfonyl hydrazide. The attributes of this reported catalytic system include… read more here.
Keywords: disproportionate coupling; phosphomolybdic acid; synthesis symmetrical; symmetrical unsymmetrical ... See more keywords
Design and Synthesis of a C3 Symmetrical Phenalenyl Derivative with Three Oxo Groups by Regioselective Deoxygenation/Oxygenation.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.1c04227
Abstract: Tri-tert-butylated 4,7-dihydroxyphenalenone was designed and synthesized from a corresponding 4,9-dimethoxyphenalenone derivative by regioselective deoxygenation/oxygenation. The 4,7-dihydroxyphenalenone derivative showed a chromic behavior accompanied by protonation and deprotonation, giving monocation and dianion species, respectively, and their C3… read more here.
Keywords: deoxygenation oxygenation; synthesis symmetrical; regioselective deoxygenation; design synthesis ... See more keywords
[Cu]-catalyzed direct coupling of dibromoalkenes: Synthesis of symmetrical 1,3-diynes and triazoles
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DOI: 10.1080/00397911.2017.1315732
Abstract: ABSTRACT An efficient [Cu]-catalyzed homocoupling of 1,1-dibromoalk-1-enes is described for the synthesis of symmetrical 1,3-diyines. The method showed good substrate scope and amenable to aryl and heteroaryl systems. Significantly, the strategy was also successfully applied… read more here.
Keywords: coupling dibromoalkenes; symmetrical diynes; direct coupling; dibromoalkenes synthesis ... See more keywords
Palladium-catalyzed One-step Synthesis of Symmetrical Diaryl Sulfones from Aryl Halides and a Sulfur Dioxide Surrogate
Sign Up to like & getrecommendations! Published in 2019 at "Chemistry Letters"
DOI: 10.1246/cl.190300
Abstract: A convenient method for the one-step synthesis of symmetrical diaryl sulfones from aryl halides has been developed. A keystone of the method is the use of K2S2O5, which can be easily and safely han... read more here.
Keywords: symmetrical diaryl; step synthesis; synthesis symmetrical; diaryl sulfones ... See more keywords