diethyl 4,5-dimethyl-2-(trifluoromethyl)cyclohexa-1,4-dien-1-ylphosphonate

Base Information

Chemical Name:diethyl 4,5-dimethyl-2-(trifluoromethyl)cyclohexa-1,4-dien-1-ylphosphonate
CAS No.:1158839-92-9
Molecular Formula:C₁₃H₂₀F₃O₃P
Molecular Weight:312.269
Hs Code.:

Synonyms:diethyl 4,5-dimethyl-2-(trifluoromethyl)cyclohexa-1,4-dien-1-ylphosphonate

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of diethyl 4,5-dimethyl-2-(trifluoromethyl)cyclohexa-1,4-dien-1-ylphosphonate

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Technology Process of diethyl 4,5-dimethyl-2-(trifluoromethyl)cyclohexa-1,4-dien-1-ylphosphonate

There total 3 articles about diethyl 4,5-dimethyl-2-(trifluoromethyl)cyclohexa-1,4-dien-1-ylphosphonate 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: 97.0%

: 513-81-5
2,3-dimethyl-buta-1,3-diene

: 152193-58-3
3,3,3-trifluoroprop-1-ynyl-phosphonic acid diethyl ester

: 1158839-92-9
diethyl 4,5-dimethyl-2-(trifluoromethyl)cyclohexa-1,4-dien-1-ylphosphonate

Guidance literature:: With 2,6-di-tert-butyl-4-methyl-phenol; In toluene; at 110 ℃; for 0.5h; Inert atmosphere; Sealed vessel;
DOI:10.1016/j.tet.2011.03.076

Reference yield:

: 683-08-9
Diethyl methylphosphonate

: 1158839-92-9
diethyl 4,5-dimethyl-2-(trifluoromethyl)cyclohexa-1,4-dien-1-ylphosphonate

Guidance literature:: Multi-step reaction with 3 steps

1.1: n-butyllithium / tetrahydrofuran; hexane / 1 h / -95 °C / Inert atmosphere

1.2: 1 h / -95 - -90 °C / Inert atmosphere

2.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / -45 °C / Inert atmosphere

2.2: 9 h / -40 - 7 °C / Inert atmosphere

3.1: 2,6-di-tert-butyl-4-methyl-phenol / toluene / 0.5 h / 110 °C / Inert atmosphere; Sealed vessel

With n-butyllithium; 2,6-di-tert-butyl-4-methyl-phenol; N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; hexane; dichloromethane; toluene; 3.1: Diels-Alder reaction;
DOI:10.1016/j.tet.2011.03.076

Reference yield:

: 85234-36-2
diethyl (3,3,3-trifluoro-2-oxopropyl)phosphonate

: 1158839-92-9
diethyl 4,5-dimethyl-2-(trifluoromethyl)cyclohexa-1,4-dien-1-ylphosphonate

Guidance literature:: Multi-step reaction with 2 steps

1.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / -45 °C / Inert atmosphere

1.2: 9 h / -40 - 7 °C / Inert atmosphere

2.1: 2,6-di-tert-butyl-4-methyl-phenol / toluene / 0.5 h / 110 °C / Inert atmosphere; Sealed vessel

With 2,6-di-tert-butyl-4-methyl-phenol; N-ethyl-N,N-diisopropylamine; In dichloromethane; toluene; 2.1: Diels-Alder reaction;
DOI:10.1016/j.tet.2011.03.076