کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1328155 | 977544 | 2007 | 6 صفحه PDF | دانلود رایگان |
(S,S)-2,6-bis[(N-α-methylbenzyl)imino]phenylpalladium bromide was synthesised by oxidative addition of palladium(0) to (S,S)-1-bromo-2,6-bis[(N-α-methylbenzyl)imino]benzene. In contrast, (S,S)-2,6-bis[(N-α-methylbenzyl)imino]phenylplatinum chloride was synthesised by direct C–H activation from the reaction of potassium tetrachloroplatinate with (S,S)-1,3-bis[(N-α-methylbenzyl)imino]benzene. The X-ray crystal structures of both pincer complexes were obtained. Treatment of both complexes with silver hexafluoroanimonate gave effective but not stereoselective catalysts for a Michael reaction between methyl vinyl ketone and methyl 2-cyanopropanoate.
C2-symmetric (S)-α-methylbenzylamine derived bis-aldimine pincer complexes of platinum(II) and palladium(II) were synthesised and fully characterised. X-ray diffraction crystallographic structures and computational analysis were correlated to the stereochemical outcome of a pincer catalysed reaction of Michael reaction between methyl 2-cyanopropanoate and methyl vinyl ketone.Figure optionsDownload as PowerPoint slide
Journal: Journal of Organometallic Chemistry - Volume 692, Issue 22, 15 October 2007, Pages 4843–4848