A series of new piano‐stool iron(II) complexes comprising N‐heterocyclic carbene ligands [Fe(Cp)(CO)2(NHC)]I (NHC = 1,3‐disubstituted imidazolidin‐2‐ylidene) have been synthesized and analyzed by 1H NMR, 13C NMR, IR, elemental analysis and mass spectrometric techniques. These compounds were easily prepared from the reaction of disubstituted imidazolidin‐2‐ylidene with [FeI(Cp)(CO)2] in toluene at room
Novel functionalized 1,3-dialkylimidazolinium salts (LHCl) as NHC precursors have been prepared and successfully applied in palladium-catalyzedarylation of benzaldehydes. The ortho position of aromatic aldehydes was directly and selectively arylated with aryl chlorides in the presence of a catalytic system prepared in situ from Pd(OAc)2, 1,3-dialkylimidazolinium chlorides (), and Cs2CO3. J. Heterocyclic
新型的功能化的1,3-二烷基咪唑啉盐(LHCl)作为NHC的前体已被制备,并成功地用于钯催化的苯甲醛芳基化。芳香醛的邻位直接和选择性地与芳基氯芳基化中制备的催化体系的存在下原位(OAC)选自Pd 2,1,3- dialkylimidazolinium氯化物()和Cs 2 CO 3。J.杂环化学。(2009)