1904-20-7

Basic information

• Product Name: 5,5-DIMETHYL-2-PROPIONYL-CYCLOHEXANE-1,3-DIONE
• Synonyms: 5,5-DIMETHYL-2-PROPIONYL-CYCLOHEXANE-1,3-DIONE
• CAS NO: 1904-20-7
• Molecular Formula: C₁₁H₁₆O₃
• Molecular Weight: 196.24294
• Mol File: 1904-20-7.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 5,5-DIMETHYL-2-PROPIONYL-CYCLOHEXANE-1,3-DIONE(CAS DataBase Reference)
• NIST Chemistry Reference: 5,5-DIMETHYL-2-PROPIONYL-CYCLOHEXANE-1,3-DIONE(1904-20-7)
• EPA Substance Registry System: 5,5-DIMETHYL-2-PROPIONYL-CYCLOHEXANE-1,3-DIONE(1904-20-7)

Safety Data

• Hazardous Substances Data: 1904-20-7(Hazardous Substances Data)

Upstream product

• 79-03-8 propionyl chloride 
• 126-81-8 dimedone 
• 1755-15-3 2-acetyldimedone 
• 74-88-4 methyl iodide 
• 69629-36-3 3-propionyloxy-5,5-dimethyl-2-cyclohexen-1-one 
• 1565845-89-7 triethylammonium 2-bromo-5,5-dimethylcyclohexane-1,3-dione-2-ide 
• 123-38-6 propionaldehyde 

Downstream Products

• 1134953-89-1 3-ethyl-1-(4-fluorophenyl)-6,6-dimethyl-6,7-dihydro-1H-indazol-4(5H)-one 
• 1134953-97-1 3-ethyl-6,6-dimethyl-1-pentafluorophenyl-6,7-dihydro-1H-indazol-4(5H)-one 
• 1134954-14-5 5,5-dimethyl-2-[1-(2-pentafluorophenylhydrazono)propyl]cyclohexane-1,3-dione 
• 1240041-10-4 1-benzyl-3-ethyl-6,6-dimethyl-6,7-dihydro-1H-indazol-4(5H)-one 
• 1240041-25-1 2-benzyl-3-ethyl-6,6-dimethyl-6,7-dihydro-2H-indazol-4(5H)-one 
• 1361480-04-7 2-[(E)-3-(1,3-benzodioxol-5-yl)-2-methyl-1-(n-propylamino)-prop-2-en-1-ylidene]-5,5-dimethyl-cyclohexane-1,3-dione 
• 1361479-97-1 2-[(E)-1-(1-azepanyl)-3-(1,3-benzodioxol-5-yl)-2-methyl-prop-2-en-1-ylidene]-5,5-dimethylcyclohexane-1,3-dione 
• 1361480-03-6 2-[(E)-3-(4-hydroxyphenyl)-2-methyl-1-(pyrrolidinyl)-prop-2-en-1-ylidene]-5,5-dimethyl-cyclohexane-1,3-dione 
• 1073973-15-5 4-(3-ethyl-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydro-indazol-1-yl)-2,3,5,6-tetrafluoro-benzonitrile 
• 1073973-13-3 4-(3-ethyl-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydro-indazol-1-yl)-2,3-difluoro-benzonitrile 
• 1073973-29-1 4-(3-ethyl-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydroindazol-1-yl)-2-fluorobenzonitrile 

Relevant articles and documents

New Protocol for the Synthesis of 2-Alkanoyl- and 2-Aryloyl-5,5-dimethylcyclohexane-1,3-diones by the Reaction of Dimedone with Various Aldehydes and Cyanogen Bromide in the Presence of Triethylamine

A new route for the synthesis of 2-alkanoyl(aryloyl)-5,5-dimethylcyclohexane-1,3-diones as cyclic β-triketones is described. This synthesis was conducted by the reaction of dimedone with cyanogen bromide and triethylamine to form first the intermediate salt, followed by the addition of various aliphatic and aromatic aldehydes. The structures of the products were characterized by IR, 1H, and 13C NMR spectroscopic techniques. A reaction mechanism is proposed.

Orthogonal regioselective synthesis of N-alkyl-3-substituted tetrahydroindazolones

A divergent strategy for the regioselective and orthogonal synthesis of complementary regioisomers of N-alkyl-3-substituted-tetrahydroindazolones 3 and 4 was achieved from. Boc-protected alkylhydrazmes 1. The robustness and sub-strate generality of this method were validated by synthesizing 3 and. 4 through the intra- and intermolecular condensation of 1 with various 2-acylcyclohexane-l,3-diones 2 and aldehydes, respectively.