25,26;27,28-dibridged p-tert-butyl-calix[4]arene bisphosphite-(C₆H₂(tBu)2-2,6, Me-4)

Base Information

• Chemical Name: 25,26;27,28-dibridged p-tert-butyl-calix[4]arene bisphosphite-(C₆H₂(tBu)2-2,6, Me-4)
• CAS No.: 544455-70-1
• Molecular Formula: C₇₄H₉₈O₆P₂
• Molecular Weight: 1145.54

Synonyms:25,26;27,28-dibridged p-tert-butyl-calix[4]arene bisphosphite-(C₆H₂(tBu)2-2,6, Me-4)

Chemical Property of 25,26;27,28-dibridged p-tert-butyl-calix[4]arene bisphosphite-(C₆H₂(tBu)2-2,6, Me-4)

Chemical Property:

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Technology Process of 25,26;27,28-dibridged p-tert-butyl-calix[4]arene bisphosphite-(C₆H₂(tBu)2-2,6, Me-4)

There total 1 articles about 25,26;27,28-dibridged p-tert-butyl-calix[4]arene bisphosphite-(C₆H₂(tBu)2-2,6, Me-4) 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: 22.0%

2,6-di-tert-butyl-4-methylphenyl phosphorodichloridate (17725-03-0) + 5,11,17,23-tetra-t-butyl-25,26,27,28-tetrahydroxycalix-4-arene (157432-87-6,288302-11-4,288302-12-5,60705-62-6) → 25,26;27,28-dibridged p-tert-butyl-calix[4]arene bisphosphite-(C6H2(tBu)2-2,6, Me-4) (544455-70-1)

Guidance literature:

With triethylamine; In tetrahydrofuran; at 0 ℃; for 48h; Inert atmosphere;

DOI:10.1016/j.jorganchem.2011.06.027

Reference yield:

bis(benzonitrile)palladium(II) dichloride (15617-18-2,39958-10-6,14220-64-5) + 25,26;27,28-dibridged p-tert-butyl-calix[4]arene bisphosphite-(C6H2(tBu)2-2,6, Me-4) (544455-70-1) → PdCl[25,26;27,28-dibridged p-tert-butyl-calix[4]arene bisphosphite-(C6H2(tBu)-2, Me-4)-(C6H2(tBu)2-2,6, Me-4)] (541548-32-7)

Guidance literature:

In toluene; 95°C, 24 h; NMR;

DOI:10.1016/j.jorganchem.2011.06.027

upstream raw materials:

2,6-di-tert-butyl-4-methylphenyl phosphorodichloridate

5,11,17,23-tetra-t-butyl-25,26,27,28-tetrahydroxycalix-4-arene

Downstream raw materials:

PdCl[25,26;27,28-dibridged p-tert-butyl-calix[4]arene bisphosphite-(C₆H₂(tBu)-2, Me-4)-(C₆H₂(tBu)2-2,6, Me-4)]

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