21992-33-6

Basic information

• Product Name: Anthracene, 9-methoxy-10-methyl-
• CAS NO: 21992-33-6
• Molecular Formula: C16H14O
• Molecular Weight: 222.287
• Mol File: 21992-33-6.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Anthracene, 9-methoxy-10-methyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Anthracene, 9-methoxy-10-methyl-(21992-33-6)
• EPA Substance Registry System: Anthracene, 9-methoxy-10-methyl-(21992-33-6)

Safety Data

• Hazardous Substances Data: 21992-33-6(Hazardous Substances Data)

Upstream product

• 90-44-8 anthracen-9(10H)-one 
• 74-88-4 methyl iodide 
• 23674-17-1 9-bromo-10-methylanthracene 
• 124-41-4 sodium methylate 

Downstream Products

• 779-02-2 9-methylanthracene 

Relevant articles and documents

Regioselective alkylation of anthrone, 5,5-dimethyl-3-isoxazolidinone and 4-methylquinolone by phase transfer catalysis

Anthrone (1) can be alkylated selectively to give O-, C,O- or C,C-substituted compounds 2, 4, or 5, respectively. Similarly, 5,5-dimethyl-3-isoxazolidinone (6) and 4-methylquinolone (9) yield N- or O-derivatives 7 and 8 or 10 and 11, respectively. The product ratios can be influenced strongly sometimes by use of different phase transfer catalysts, but the sensitivity of each reaction towards the catalysts is unique.

TELE-SUBSTITUTIONS EN SERIE ANTHRACENIQUE-I. COMPORTEMENT DU BROMO-9-METHYL-10 ANTHRACENE VIS-A-VIS DES ANIONS PHENATES ET ALCOOLATES

Treatment of 9-bromo-10-methyl anthracene 1, in dipolar aprotic solvents, by alkaline phenoxide or alkoxides leads essentially to a mixture of the expected ether, 9-phenoxy (or alkoxy)-10-methyl anthracene 2, normal substitution product (NSP), and of the isomeric ether, 9-phenoxymethyl (or alkoxymethyl)-anthracene 3, tele-substitution product (TSP).It is shown that both ethers must derive from a common unstable intermediate, the 9-bromo-10-methylene-9,10-dihydroanthracene 8, coming from 1 by a prototropic shift and which can undergo both types of substitution.With more hindered phenoxide ions, only the tele-substitution process is observed.