4,5-(bis-{di[3,5-di-tert-butyl)phenyl]phosphonito}-9,9-dimethyl-9H-xanthene

Base Information

• Chemical Name: 4,5-(bis-{di[3,5-di-tert-butyl)phenyl]phosphonito}-9,9-dimethyl-9H-xanthene
• CAS No.: 404873-88-7
• Molecular Formula: C₇₁H₉₆O₅P₂
• Molecular Weight: 1091.49

Synonyms:4,5-(bis-{di[3,5-di-tert-butyl)phenyl]phosphonito}-9,9-dimethyl-9H-xanthene

Chemical Property of 4,5-(bis-{di[3,5-di-tert-butyl)phenyl]phosphonito}-9,9-dimethyl-9H-xanthene

Chemical Property:

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Technology Process of 4,5-(bis-{di[3,5-di-tert-butyl)phenyl]phosphonito}-9,9-dimethyl-9H-xanthene

There total 1 articles about 4,5-(bis-{di[3,5-di-tert-butyl)phenyl]phosphonito}-9,9-dimethyl-9H-xanthene which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

9,9-dimethylxanthene (19814-75-6) → 4,5-(bis-{di[3,5-di-tert-butyl)phenyl]phosphonito}-9,9-dimethyl-9H-xanthene (404873-88-7)

Guidance literature:

Multi-step reaction with 2 steps

1.1: TMEDA; n-BuLi / diethyl ether; hexane / -40 - 20 °C

1.2: 63 percent / pentane; diethyl ether; hexane / -60 - 20 °C

2.1: 54 percent / tetrazole / bis-(2-methoxy-ethyl) ether / 135 °C

With 1H-tetrazole; n-butyllithium; N,N,N,N,-tetramethylethylenediamine; In diethyl ether; hexane; diethylene glycol dimethyl ether;

DOI:10.1002/adsc.200303240

Reference yield:

acetylacetonatodicarbonylrhodium(l) + carbon monoxide (201230-82-2) + hydrogen (1333-74-0) + 4,5-(bis-{di[3,5-di-tert-butyl)phenyl]phosphonito}-9,9-dimethyl-9H-xanthene (404873-88-7) → RhH(CO)2C12H6OC(CH3)2(P(OC6H3(C(CH3)3)2)2)2

Guidance literature:

In cyclohexane; High Pressure; (Ar); pressurising a mixt. of rhodium complex and ligand in cyclohexane with 17 bar of synthesis gas at room temp. in autoclave, heating to 80°C; detected by IR;

DOI:10.1021/om0498899

upstream raw materials:

9,9-dimethylxanthene

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