74585-28-7

Basic information

• Product Name: 4-methyl-9,10-phenanthryne
• Synonyms: 4-methyl-9,10-phenanthryne
• CAS NO: 74585-28-7
• Molecular Weight: 190.244
• Mol File: 74585-28-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4-methyl-9,10-phenanthryne(CAS DataBase Reference)
• NIST Chemistry Reference: 4-methyl-9,10-phenanthryne(74585-28-7)
• EPA Substance Registry System: 4-methyl-9,10-phenanthryne(74585-28-7)

Safety Data

• Hazardous Substances Data: 74585-28-7(Hazardous Substances Data)

Upstream product

• 74585-27-6 4-methyl-phenanthrene-9,10-dicarboxylic anhydride 

Downstream Products

• 832-64-4 4-methylphenanthrene 
• 203-64-5 4H-Cyclopenta[def]phenanthrene 

Relevant articles and documents

The formation and reactions of 9,10-phenanthryne and related arynes by pyrolytic reactions in the vapor phase

The formation of 9,10-phenanthryne (5), 4-methyl-9,10-phenanthryne (7) and 9,10-benz(c)phenanthryne (9) by the thermal degradation of appropriate arenedicarboxylic acid anhydrides has been investigated by a combination of VLPP and mass spectrometry and by a co-pyrolysis of the anhydrides with benzene, hexadeuterobenzene and 1,3-butadiene. Compounds 5,7 and especially 9 are formed easily by VLPP at 700-900° from the anhydrides. The results indicate that 7 and 9 are less reactive by H-addition to the aryne bond than 5, benzyne or naphthalyne, respectively. The results of the co-pyrolysis experiments show that 5 and 9 react with benzene and 1,3-butadiene by H-abstraction and addition reactions, similar to 1,2-benzyne and 2,3-naphthalyne. However, the reactivity of the aryne in the H-abstraction reaction decreases and the selectivity for the addition reaction increases in the series 1,2-benzyne, 2,3-naphthalyne, 9,10-phenanthryne and 9,10benz(c)phenanthryne.