2-[2,6-bis-(3,5-di-tert-butyl-4-hydroxy-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-hydroxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-ylidene]-malononitrile
CAS No.:216756-81-9
Molecular Formula:C₄₀H₄₄N₂O₂S₂
Molecular Weight:648.934
Hs Code.:

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

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

There total 3 articles about 2-[2,6-bis-(3,5-di-tert-butyl-4-hydroxy-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: 90.0%

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

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

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

Reference yield:

: 204929-38-4
2,6-bis-(3,5-di-tert-butyl-4-hydroxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-one

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

Guidance literature:: Multi-step reaction with 3 steps

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

2: piperodine / benzene / 22 h / Heating

3: 90 percent / TBAF / tetrahydrofuran / 0.03 h / 0 °C

With piperodine; tetrabutyl ammonium fluoride; In tetrahydrofuran; acetonitrile; benzene;
DOI:10.1002/(SICI)1521-3773(19981002)37:18<2484::AID-ANIE2484>3.0.CO;2-B

Reference yield:

: 216756-79-5
2,6-bis-(3,5-di-tert-butyl-4-trimethylsilanyloxy-phenyl)-cyclopenta[2,1-b;3,4-b']dithiophen-4-one

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

Guidance literature:: Multi-step reaction with 2 steps

1: piperodine / benzene / 22 h / Heating

2: 90 percent / TBAF / tetrahydrofuran / 0.03 h / 0 °C

With piperodine; tetrabutyl ammonium fluoride; In tetrahydrofuran; benzene;
DOI:10.1002/(SICI)1521-3773(19981002)37:18<2484::AID-ANIE2484>3.0.CO;2-B