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4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene synthesis
- Product Name:4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene
- CAS Number:161265-03-8
- Molecular formula:C39H32OP2
- Molecular Weight:578.62
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![(OXYDI-2,1-PHENYLENE)BIS(DIPHENYLPHOSPHINE)](/CAS/GIF/166330-10-5.gif)
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![4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene](/CAS/GIF/161265-03-8.gif)
161265-03-8
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$6.00/1g
Yield:161265-03-8 95%
Reaction Conditions:
with trifluorormethanesulfonic acid in toluene at 200; for 16 h;Inert atmosphere;Temperature;
Steps:
1; 2; 3 Example 3
Under argon protection, bis(2-diphenylphosphinophenyl)ether (Compound 2) 538 g, toluene solvent was added to the reaction vessel.700 mL, 8.8 mL of trifluoromethanesulfonic acid, 150 mL of acetone, the reaction system was heated to 200 °C, and after 16 h of reaction, it was reduced toAt room temperature, after extraction, drying and recrystallization, the desired product 4,5-bisdiphenylphosphino-9,9-dimethyloxaxan (Compound 1) is obtained.549 g (yield 95%).
References:
CN109942631,2019,A Location in patent:Paragraph 0005; 0008-0009
![9,9-DIMETHYL-9H-XANTHENE](/CAS/GIF/19814-75-6.gif)
19814-75-6
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161265-03-8
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19814-75-6
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161265-03-8
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808142-24-7
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![4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene](/CAS/GIF/161265-03-8.gif)
161265-03-8
441 suppliers
$6.00/1g