Abstract
(1 R,2 R)-diaminocyclohexane ( 1) and (1 R,2 R)-diaminodiphenylethylenediamine ( 2) were used as building blocks for the synthesis of chiral tetradentate diquinolyl-diamine and related diquinolyl-dihydroimidazolium salts. A neutral chiral palladium(II) complex was synthesized by reaction of palladium acetate with the tetradentate diquinolyl diamine derived from 2 and used as a homogeneous catalyst for the Heck reaction between styrene and haloarenes. A chiral tridentate aminocarbene was generated in situ by deprotonation of the dihydroimidazolium salt derived from 1 and allowed to react with CuI to give a new chiral quinolyl-carbene copper(I) complex.
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