Application of 12150-46-8, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 12150-46-8, C34H28FeP2. A document type is Article, introducing its new discovery.
1,2,4-Trimethyl-cyclohexadiene reacts with RuCl3·nH 2O in refluxing ethanol to afford quantitatively [RuCl 2(1,2,4-C6H3Me3)]2 (1), the coordination of 1,2,4-trimethylbenzene to the ruthenium atom introducing planar chirality at the eta6-arene ligand. The dinuclear complex 1 reacts with two equivalents of triphenylphosphine (PPh3) to give quantitatively, as a racemic mixture of enantiomers, [RuCl2(1,2,4- C6H3Me3)(PPh3)] (2), the structure of which has been determined by a single-crystal X-ray structure analysis of (rac)-2. Similarly, 1 reacts with two equivalents of the enantiopure phosphine (1S,2S,5R)-(+)-neomenthyldiphenylphosphine (nmdpp) to afford in good yield [RuCl2(1,2,4-C6H3Me3)(nmdpp)] (3) as a mixture of diastereoisomers, from which the isomer 3a was isolated by crystallisation. A single-crystal X-ray structure analysis of 3a allowed the determination of the absolute configuration at the planar chiral eta 6-arene moiety. Finally, complex 1 reacts with one equivalent of the diphosphine ligand 1,1?-bis(diphenylphosphino)ferrocene (dppfc) to give the heteronuclear complex [RuCl2(1,2,4-C6H 3Me3) (dppfc)RuCl2(1,2,4-C6H 3Me3)] (4). All complexes were fully characterised by elemental analysis, mass spectrometry, NMR and IR spectroscopies.
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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate