5-tert-butyl-3,3-bis-(5-tert-butyl-2-methoxy-phenyl)-3H-benzo[d][1,2]oxaphosphole 2-oxide

Base Information

• Chemical Name: 5-tert-butyl-3,3-bis-(5-tert-butyl-2-methoxy-phenyl)-3H-benzo[d][1,2]oxaphosphole 2-oxide
• CAS No.: 340254-92-4
• Molecular Formula: C₃₃H₄₃O₄P
• Molecular Weight: 534.676

Synonyms:5-tert-butyl-3,3-bis-(5-tert-butyl-2-methoxy-phenyl)-3H-benzo[d][1,2]oxaphosphole 2-oxide

Chemical Property of 5-tert-butyl-3,3-bis-(5-tert-butyl-2-methoxy-phenyl)-3H-benzo[d][1,2]oxaphosphole 2-oxide

Chemical Property:

Purity/Quality:

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Technology Process of 5-tert-butyl-3,3-bis-(5-tert-butyl-2-methoxy-phenyl)-3H-benzo[d][1,2]oxaphosphole 2-oxide

There total 4 articles about 5-tert-butyl-3,3-bis-(5-tert-butyl-2-methoxy-phenyl)-3H-benzo[d][1,2]oxaphosphole 2-oxide 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: 38.0%

5,5',5''-tri-tert-butyl-2,2',2''-trimethoxytriphenylmethane (340254-90-2) → 5-tert-butyl-3,3-bis-(5-tert-butyl-2-methoxy-phenyl)-3H-benzo[d][1,2]oxaphosphole 2-oxide (340254-92-4)

Guidance literature:

5,5',5''-tri-tert-butyl-2,2',2''-trimethoxytriphenylmethane; With n-butyllithium;

With phosphorus trichloride; at 50 ℃;

With water; Further stages.;

DOI:10.1021/ja0056264

Reference yield:

5-tert-butyl-3,3-bis-(5-tert-butyl-2-methoxy-phenyl)-2-chloro-2,3-dihydro-benzo[d][1,2]oxaphosphole → 5-tert-butyl-3,3-bis-(5-tert-butyl-2-methoxy-phenyl)-3H-benzo[d][1,2]oxaphosphole 2-oxide (340254-92-4)

Guidance literature:

With water; silica gel; In acetonitrile; wet and dry column chromatography;

DOI:10.1021/ja011458j

Reference yield:

2-bromo-4-tert-butylanisole (41280-65-3) → 5-tert-butyl-3,3-bis-(5-tert-butyl-2-methoxy-phenyl)-3H-benzo[d][1,2]oxaphosphole 2-oxide (340254-92-4)

Guidance literature:

Multi-step reaction with 4 steps

1.1: Mg / tetrahydrofuran / 4 h / Heating

1.2: 99 percent / tetrahydrofuran / Heating

2.1: 84 percent / Et₃SiH; AcOH / 80 °C

3.1: n-BuLi / benzene; hexane / 24 h / 50 °C

3.2: PCl₃ / benzene; hexane / 168 h / 50 - 80 °C

4.1: 1.22 g / H₂O; SiO₂ / acetonitrile / wet and dry column chromatography

With triethylsilane; n-butyllithium; water; silica gel; magnesium; acetic acid; In tetrahydrofuran; hexane; acetonitrile; benzene;

DOI:10.1021/ja011458j

upstream raw materials:

5,5',5''-tri-tert-butyl-2,2',2''-trimethoxytriphenylmethane

2-bromo-4-tert-butylanisole

5,5',5''-tri-tert-butyl-2,2',2''-trimethoxytriphenylmethanol

Downstream raw materials:

4-tert-butyl-2-(3,6-di-tert-butyl-9a-thioxo-9,10-dioxa-9aλ⁵-phospha-indeno[1,2-a]inden-4b-yl)-phenol

3,6-di-tert-butyl-4b-(5-tert-butyl-2-methoxy-phenyl)-4bH-9,10-dioxa-9a-phospha-indeno[1,2-a]indene

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