Geoffroy et al. developed a metastable complex of a carbene and one of these compounds with no vacant metal d pi orbitals.
Geoffroy et al. developed a metastable complex of a carbene and one of these compounds with no vacant metal d pi orbitals.Copper bromide and an amine base can couple a halogen-substituted compound of this kind with an unsubstitutedone. Propargyl alcohols serve as a protecting group for these functional groups, and are formed by the treatment of one witha carbonyl compound and a base in the Favorskii reaction. Barry Sharpless considered the premiere click reaction to be theHuisgen cycloaddition of an azide to one of these functional groups. Some of them register as strong, narrow bands between3260 to 3330 inverse centimeters in IR spectroscopy; that type of these compounds is also unusually acidic, with a pKa of 26.Lindlar's catalyst partially hydrogenates these compounds, in which the addition of HX compounds is not stereoselective dueto a planar intermediate. The simplest ones follow the formula C n H 2n-2, and include acetylene. For 10 points, name thisfunctional group with a carbon-carbon triple bond.
Geoffroy et al. developed a metastable complex of a carbene and one of these compounds with no vacant metal d pi orbitals.
alkynes [accept acetylenes before mentioned]