Synthetic Route of 161265-03-8, An article , which mentions 161265-03-8, molecular formula is C39H32OP2. The compound – (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine) played an important role in people’s production and life.
The invention relates to a can be used as pharmaceutical intermediates of the formula (III) as shown in the synthesis method of a phenothiazine compound, said method comprising: room temperature, is added to the organic solvent in the following formula (I) compounds, of formula (II) compound, catalyst, ligand, alkali and an auxiliary, heating up to 70 – 90 C and stirring the reaction 7 – 10 hours, after the reaction after treatment, thereby obtaining states the type (III) compound, wherein R1 , R2 Are each independently selected from H, C1 – C6 Alkyl, C1 – C6 Alkoxy or halogen; X is halogen. The method through the appropriate use of the reactant, and catalyst, ligand, alkali, compounding chemicals and organic solvent with the comprehensive selective synergy, thus can yield to obtain the target product, it has good application prospects and industrial production potential. (by machine translation)
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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