7,7-Dimethyl-4-(4-methylphenyl)-3,4,6,8-tetrahydrochromene-2,5-dione

Base Information

Chemical Name:7,7-Dimethyl-4-(4-methylphenyl)-3,4,6,8-tetrahydrochromene-2,5-dione
CAS No.:400084-56-2
Molecular Formula:C₁₈H₂₀O₃
Molecular Weight:284.355
Hs Code.:
DSSTox Substance ID:DTXSID701135043
Nikkaji Number:J2.980.425G

Synonyms:400084-56-2;7,7-dimethyl-4-(4-methylphenyl)-3,4,6,8-tetrahydrochromene-2,5-dione;7,7-dimethyl-4-(4-methylphenyl)-4,6,7,8-tetrahydro-2H-chromene-2,5(3H)-dione;Oprea1_823522;DTXSID701135043;AKOS015993043;6B-100;4,6,7,8-Tetrahydro-7,7-dimethyl-4-(4-methylphenyl)-2H-1-benzopyran-2,5(3H)-dione;4-(4-Methylphenyl)-7,7-dimethyl-7,8-dihydro-3H-1-benzopyran-2,5(4H,6H)-dione;7,7-dimethyl-4-(4-methylphenyl)-3,4,5,6,7,8-hexahydro-2H-1-benzopyran-2,5-dione

Suppliers and Price of 7,7-Dimethyl-4-(4-methylphenyl)-3,4,6,8-tetrahydrochromene-2,5-dione

Supply Marketing:

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

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Chemical Property of 7,7-Dimethyl-4-(4-methylphenyl)-3,4,6,8-tetrahydrochromene-2,5-dione

Chemical Property:

XLogP3:3
Hydrogen Bond Donor Count:0
Hydrogen Bond Acceptor Count:3
Rotatable Bond Count:1
Exact Mass:284.14124450
Heavy Atom Count:21
Complexity:493

Purity/Quality:

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:

Useful:

Canonical SMILES:CC1=CC=C(C=C1)C2CC(=O)OC3=C2C(=O)CC(C3)(C)C

Technology Process of 7,7-Dimethyl-4-(4-methylphenyl)-3,4,6,8-tetrahydrochromene-2,5-dione

There total 4 articles about 7,7-Dimethyl-4-(4-methylphenyl)-3,4,6,8-tetrahydrochromene-2,5-dione 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: 93.0%

: 15795-51-4
2,2-dimethyl-5-(4-methylbenzylidene)-1,3-dioxane-4,6-dione

: 126-81-8
dimedone

: 400084-56-2
7,7-dimethyl-4-(p-tolyl)-4,6,7,8-tetrahydro-3H-chromene-2,5-dione

Guidance literature:: With PEG-stabilized Ni nanoparticles; In ethylene glycol; at 20 ℃; for 0.166667h;
DOI:10.1016/j.tetlet.2011.05.032

Reference yield:

: 104-87-0
4-methyl-benzaldehyde

: 400084-56-2
7,7-dimethyl-4-(p-tolyl)-4,6,7,8-tetrahydro-3H-chromene-2,5-dione

Guidance literature:: Multi-step reaction with 2 steps

1: PEG-stabilized Ni nanoparticles / ethylene glycol / 0.17 h / 20 °C

2: PEG-stabilized Ni nanoparticles / ethylene glycol / 0.17 h / 20 °C

With PEG-stabilized Ni nanoparticles; In ethylene glycol; 1: Knoevenagel condensation;
DOI:10.1016/j.tetlet.2011.05.032

Reference yield:

: 15851-89-5,13565-07-6
(E)-p-methylcinnamoyl chloride

: 400084-56-2
7,7-dimethyl-4-(p-tolyl)-4,6,7,8-tetrahydro-3H-chromene-2,5-dione

Guidance literature:: Multi-step reaction with 2 steps

1: pyridine / dichloromethane / 51 h / 0 - 20 °C / Inert atmosphere

2: triethylamine

With pyridine; triethylamine; In dichloromethane;
DOI:10.1016/j.tetasy.2014.01.005