2114-44-5Relevant academic research and scientific papers
Palladium-catalyzed methylation of alkynyl C(sp)-H bonds with dimethyl sulfonium ylides
Liu, Yan-Yun,Yang, Xu-Heng,Huang, Xiao-Cheng,Wei, Wen-Ting,Song, Ren-Jie,Li, Jin-Heng
, p. 10421 - 10426 (2013/11/06)
A novel palladium-catalyzed methylation protocol for the synthesis of methyl-functionalized internal alkynes has been established. This methylation method is achieved through a C(sp)-C(sp3) bond formation process and represents a new synthetic application of sulfonium ylides.
Mesityl alkyne substituents for control of regiochemistry and reversibility in zirconocene couplings: New synthetic strategies for unsymmetricalzirconacyclopentadienes and conjugated polymers
Miller, Adam D.,Tannaci, John F.,Johnson, Samuel A.,Lee, Hyuk,McBee, Jennifer L.,Tilley, T. Don
experimental part, p. 4917 - 4927 (2009/09/30)
Reaction of 2 equivs of MesC≡CPh with Cp2Zr( η2-Me3SiC≡CSiMe3)(pyr) afforded the zircona-cyclopentadiene Cp2Zr[2,5-Ph2-3,4-Mes2C 4]. The regiochemistry of this isomer (ssss with
New Cyclopentadienones from Sterically Demanding Inner Acetylenes and Dicobalt-octacarbonyl
Dehmlow, Eckehard V.,Winterfeldt, Andreas
, p. 455 - 458 (2007/10/02)
Acetylenes carrying one bulky substituent can be transformed into symmetrically or asymmetrically substituted ccylopentadienones 2 or 3 when they are heated with Co2(CO)8 and carbon monoxide.Intramolecular cyclizations yielding compounds 5 are also possible. - Keywords: Alkyne-Carbon Monoxide Reaction, Metal Carbonyl Catalysis, Cyclopentadienones, Cycloalkanocyclopentadienones
EIN EINFACHES VERFAHREN ZUR ALKYLIERUNG VON ARYLALKINEN
Lissel, Manfred
, p. 1843 - 1844 (2007/10/02)
Arylalkynes are alkylated in a rapid reaction and under mild conditions by alkyl iodides in the presence of powdered KOH and 18-crown-6
