1,4-Diphenyl-5,5-dimethyl-1,3-cyclopentadiene

Base Information

Chemical Name:1,4-Diphenyl-5,5-dimethyl-1,3-cyclopentadiene
CAS No.:33930-83-5
Molecular Formula:C₁₉H₁₈
Molecular Weight:246.352
Hs Code.:
DSSTox Substance ID:DTXSID101184161
Nikkaji Number:J3.242.808H

Synonyms:DTXSID101184161;AKOS024321604;1,4-Diphenyl-5,5-dimethyl-1,3-cyclopentadiene;(5,5-dimethyl-4-phenyl-1,3-cyclopentadien-1-yl)benzene;1,1'-(2,2-Dimethyl-3,5-cyclopentadiene-1,3-diyl)bis[benzene];33930-83-5

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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 1,4-Diphenyl-5,5-dimethyl-1,3-cyclopentadiene

Chemical Property:

XLogP3:5.1
Hydrogen Bond Donor Count:0
Hydrogen Bond Acceptor Count:0
Rotatable Bond Count:2
Exact Mass:246.140850574
Heavy Atom Count:19
Complexity:335

Purity/Quality:

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:

Useful:

Canonical SMILES:CC1(C(=CC=C1C2=CC=CC=C2)C3=CC=CC=C3)C

Technology Process of 1,4-Diphenyl-5,5-dimethyl-1,3-cyclopentadiene

There total 7 articles about 1,4-Diphenyl-5,5-dimethyl-1,3-cyclopentadiene 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: 86.0%

: 1,4-bis[(trifluoromethanesulfonyl)oxy]-5,5-dimethylcyclopenta-1,3-diene

: 98-80-6
phenylboronic acid

: 33930-83-5
5,5-Dimethyl-1,4-diphenylcyclopenta-1,3-diene

Guidance literature:: With potassium fluoride; tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; tricyclohexylphosphine; In tetrahydrofuran; water; at 20 ℃; for 12h; Inert atmosphere; Schlenk technique;
DOI:10.1021/ol402824m

Reference yield:

: 3883-58-7
2,2-dimethylcyclopentane-1,3-dione

: 33930-83-5
5,5-Dimethyl-1,4-diphenylcyclopenta-1,3-diene

Guidance literature:: Multi-step reaction with 2 steps

1: potassium hexamethylsilazane / tetrahydrofuran / 5 h / -78 °C / Inert atmosphere

2: potassium fluoride; tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; tricyclohexylphosphine / tetrahydrofuran; water / 12 h / 20 °C / Inert atmosphere; Schlenk technique

With potassium fluoride; tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; potassium hexamethylsilazane; tricyclohexylphosphine; In tetrahydrofuran; water;
DOI:10.1021/ol402824m

Reference yield:

: 1,4-bis[(trifluoromethanesulfonyl)oxy]-5,5-dimethylcyclopenta-1,3-diene

: 33930-83-5
5,5-Dimethyl-1,4-diphenylcyclopenta-1,3-diene

Guidance literature:: Multi-step reaction with 2 steps

1: potassium bromide; potassium phenolate; bis-triphenylphosphine-palladium(II) chloride; triphenylphosphine / toluene / 12 h / 60 °C / Inert atmosphere; Schlenk technique

2: tetrabutylammomium bromide; potassium carbonate; tetrakis(triphenylphosphine) palladium⁽⁰⁾ / water; ethanol / 72 h / 100 °C / Inert atmosphere; Schlenk technique

With bis-triphenylphosphine-palladium(II) chloride; tetrakis(triphenylphosphine) palladium⁽⁰⁾; potassium phenolate; tetrabutylammomium bromide; potassium carbonate; triphenylphosphine; potassium bromide; In ethanol; water; toluene;
DOI:10.1021/ol402824m