21912-23-2

Basic information

• Product Name: 5,7-Dimethyl-1,3-dibromoadamantane
• Synonyms: 3,5-Dimethyl-1,7-dibromoadamantane;5,7-Dimethyl-1,3-dibromoadamantane;1,3-DIBROMO-5,7-DIMETHYLADAMANTANE
• CAS NO: 21912-23-2
• Molecular Formula: C12H18Br2
• Molecular Weight: 322.07932
• Mol File: 21912-23-2.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 5,7-Dimethyl-1,3-dibromoadamantane(CAS DataBase Reference)
• NIST Chemistry Reference: 5,7-Dimethyl-1,3-dibromoadamantane(21912-23-2)
• EPA Substance Registry System: 5,7-Dimethyl-1,3-dibromoadamantane(21912-23-2)

Safety Data

• Hazardous Substances Data: 21912-23-2(Hazardous Substances Data)

Usage

Uses

5,7-Dimethyl-1,3-dibromoadamantane CAS:21912-23-2 is a useful building block for organic synthesis.

Upstream product

• 707-37-9 1,3-dimethyl-5-adamantanol 
• 497-19-8 sodium carbonate 
• 702-79-4 1,3-dimethyladamantane 

Downstream Products

• 13928-68-2 5,7-dimethyladamantane-1,3-dicarboxylic acid 
• 14931-70-5 1,3?diacetamido?5,7?dimethyladamantane 
• 1356094-12-6 2-(1,5-dimethyl-7-methylidenebicyclo[3.3.1]non-2-en-3-yloxy)ethyl 4-nitrobenzoate 
• 1356094-10-4 5,7-dimethyladamantane-1,3-diylbis(oxyethane-2,1-diyl) bis(4-nitrobenzoate) 

Relevant articles and documents

The synthesis of 3-amino-3-methylbicyclo[3.3.1]nonanes: Endo-selectivity in the Ritter reaction of 1,3,5,7α-tetramethylbicyclo[3.3.1]nonan-3-ol

1,3,5,7α- and 1,3,5,7β-Tetramethylbicyclo[3.3.1]nonan-3-ols 3a and 3b were prepared from the corresponding ketones 2a and 2b. 7α-Methyl isomer 3a gave selectively endo-3α-N-formylaminobicyclononane 10 in the Ritter reaction with trimethylsilyl cyanide. 7β-Methyl epimer 3b suffered water elimination resulting in bicyclo[3.3.1]non-2-ene 12 under the same reaction conditions. The endo-amide structure was confirmed by X-ray analysis. The Royal Society of Chemistry 1999.

Ethynyl adamantane derivatives and methods of polymerization thereof

1,3-Diethynyl-5,7-dimethyladamantane; 1,3,5-triethynyladamantane; 3,3'-diethynyl-1,1'-biadamantane; 1-ethynyldiamantane; 1,4-diethynyldiamantane; 1,6-diethynyldiamantane and 4,9-diethynyldiamantane as new compositions of matter, and a method of forming them in which adamantane; 1,3-dimethyladamatane; 1-hydroxy-3,5-dimethyladamantane; 1,1'-biadamantane and diamantane are each brominated to form a bromo derivative thereof; the bromo derivative is reacted with vinyl bromide in the presence of a Friedel-Crafts catalyst to convert it to its corresponding 2,2-dibromoethyl derivative and the 2,2-dibromoethyl derivative is subjected to dehydrohalogenation to convert it to its final ethynyl form. The 1,3-diethynyl-5,7-dimethyladamantane; 1,3,5-triethynyladamantane; 3,3'-diethynyl-1,1'-biadamantane; 1,4-diethynyldiamantane; 1,6-diethynyldiamantane and 4,9-diethynyldiamantane can be heat cured to form homopolymers having useful commercial properties. 1,3-Diethynyl-5,7-dimethyladamantane; 1,3,5-triethynyladamantane; 1,4-diethynyldiamantane; 1,6-diethynyldiamantane and 4,9-diethynyldiamantane can be polymerized in the presence of a suitable metal or peroxide catalyst.