Zuo, Ziqing; Kim, Raphael S.; Watson, Donald A. published the artcile< Synthesis of Axially Chiral 2,2'-Bisphosphobiarenes via a Nickel-Catalyzed Asymmetric Ullmann Coupling: General Access to Privileged Chiral Ligands without Optical Resolution>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is nickel catalyzed asym Ullmann coupling iodoarylphosphine oxide iodoarylphosphonate; axially chiral bisphosphobiarene preparation.
The authors report an asym. homocoupling of ortho-(iodo)arylphosphine oxides and ortho-(iodo)arylphosphonates resulting in highly enantioenriched axially chiral bisphosphine oxides and bisphosphonates. These products are readily converted to enantioenriched biaryl bisphosphines without need for chiral auxiliaries or optical resolution This provides a practical route for the development of previously unstudied atroposelective biaryl bisphosphine ligands. The conditions also proved effective for asym. dimerization of other, nonphosphorus-containing aryl halides.
Journal of the American Chemical Society published new progress about Aromatic hydrocarbons Role: SPN (Synthetic Preparation), PREP (Preparation) (2,2′-bisphosphobiarenes). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate.
Referemce:
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