2-[2,6-bis-(3,5-di-tert-butyl-4-trimethylsilanyloxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-ylidene]-malononitrile

Base Information

• Chemical Name: 2-[2,6-bis-(3,5-di-tert-butyl-4-trimethylsilanyloxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-ylidene]-malononitrile
• CAS No.: 216756-80-8
• Molecular Formula: C₄₆H₆₀N₂O₂S₂Si₂
• Molecular Weight: 793.298

Synonyms:2-[2,6-bis-(3,5-di-tert-butyl-4-trimethylsilanyloxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-ylidene]-malononitrile

Chemical Property of 2-[2,6-bis-(3,5-di-tert-butyl-4-trimethylsilanyloxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-ylidene]-malononitrile

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
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MSDS Files:

Useful:

Technology Process of 2-[2,6-bis-(3,5-di-tert-butyl-4-trimethylsilanyloxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-ylidene]-malononitrile

There total 2 articles about 2-[2,6-bis-(3,5-di-tert-butyl-4-trimethylsilanyloxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-ylidene]-malononitrile 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:

2,6-bis-(3,5-di-tert-butyl-4-hydroxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-one (204929-38-4) → 2-[2,6-bis-(3,5-di-tert-butyl-4-trimethylsilanyloxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-ylidene]-malononitrile (216756-80-8)

Guidance literature:

Multi-step reaction with 2 steps

1: 77 percent / acetonitrile / 1 h / 75 °C

2: piperodine / benzene / 22 h / Heating

With piperodine; In acetonitrile; benzene;

DOI:10.1002/(SICI)1521-3773(19981002)37:18<2484::AID-ANIE2484>3.0.CO;2-B

Reference yield:

malononitrile (109-77-3) + 2,6-bis-(3,5-di-tert-butyl-4-trimethylsilanyloxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-one (216756-79-5) → 2-[2,6-bis-(3,5-di-tert-butyl-4-trimethylsilanyloxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-ylidene]-malononitrile (216756-80-8)

Guidance literature:

With piperodine; In benzene; for 22h; Yield given; Heating;

DOI:10.1002/(SICI)1521-3773(19981002)37:18<2484::AID-ANIE2484>3.0.CO;2-B

Reference yield: 90.0%

2-[2,6-bis-(3,5-di-tert-butyl-4-trimethylsilanyloxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-ylidene]-malononitrile (216756-80-8) → 2-[2,6-bis-(3,5-di-tert-butyl-4-hydroxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-ylidene]-malononitrile (216756-81-9)

Guidance literature:

With tetrabutyl ammonium fluoride; In tetrahydrofuran; at 0 ℃; for 0.0333333h;

DOI:10.1002/(SICI)1521-3773(19981002)37:18<2484::AID-ANIE2484>3.0.CO;2-B

upstream raw materials:

malononitrile

2,6-bis-(3,5-di-tert-butyl-4-trimethylsilanyloxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-one

2,6-bis-(3,5-di-tert-butyl-4-hydroxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-one

Downstream raw materials:

2-[2,6-bis-(3,5-di-tert-butyl-4-hydroxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-ylidene]-malononitrile

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