126694-91-5

Basic information

• Product Name: 2-butyl-1,2-dihydroanthracene
• Synonyms: 2-butyl-1,2-dihydroanthracene
• CAS NO: 126694-91-5
• Molecular Weight: 236.357
• Mol File: 126694-91-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2-butyl-1,2-dihydroanthracene(CAS DataBase Reference)
• NIST Chemistry Reference: 2-butyl-1,2-dihydroanthracene(126694-91-5)
• EPA Substance Registry System: 2-butyl-1,2-dihydroanthracene(126694-91-5)

Safety Data

• Hazardous Substances Data: 126694-91-5(Hazardous Substances Data)

Upstream product

• 109-69-3 n-Butyl chloride 
• 86901-19-1 9,10-dihydro-9,10-anthracendiyl-tris(THF)magnesium 

Relevant articles and documents

Use of Magnesium Anthracene * 3 THF in Synthesis: Generation of Grignard Compounds and Other Reactions with Organic Halides

The course (a), (b), (c) (Scheme 1) of the reaction of magnesium anthracene * 3 THF (1) with organic halides (RX) is dependent on the nature of RX.With alkyl halides in THF 1 reacts as a nucleophile, whereby primary as well as secondary alkyl halides produce dialkyldihydroanthracenes (4-4'') and tertiary alkyl halides yield primarily monoalkyl-substituted dihydroanthracenes (2, 2').With bromo- and iodobenzene in THF 1 reacts predominantly as a radical with H atom abstraction from the solvent affording benzene and 9.The formation of Grignard compounds (5) and anthracene (6), originating from primary and secondary alkyl and aryl halides and 1 in toluene or ether at elevated temperatures, is not caused by the reaction of 1 but by the "active magnesium" (Mg*) formed by decomposition of 1 in these solvents.In contrast, allyl, propargyl, and benzyl halides react with 1 independently of the solvent under mild conditions to produce 5 and 6.Allyl- and the difficultly accessible allenylmagnesium chloride can be prepared in THF at -78 and 0 deg C, respectively, from the corresponding halides and ordinary Mg powder via catalytic amounts of 1.