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The Regioselective Methylation of Polycyclic Aromatic Hydrocarbons through Tricarbonylchromium Coordination
Author(s) -
Own Z. Y.,
Chiu LiTing
Publication year - 1998
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199800106
Subject(s) - anthracene , chemistry , phenanthrene , regioselectivity , deprotonation , yield (engineering) , chromium , medicinal chemistry , selectivity , organic chemistry , catalysis , ion , materials science , metallurgy
Deprotonation, methylation, and air oxidation of polycyclic arenes coordinated to chromium(0), (η 6 ‐arene)Cr(CO) 3 , produced ring‐methylated products with high selectivity and in good yield. This procedure gave 3‐methylbenz[ a ]anthracene from (η 6 ‐benz[ a ]anthracene)Cr(CO) 3 , 3‐methylphenanthrene from (η 6 ‐phenanthrene)Cr(CO) 3 , 2‐acetyl‐6‐methylphenanthrene from (η 6− 2‐acetylphenanthrene)Cr(CO) 3 , and 3,7,12‐trimethylbenz[ a ]anthracene from (η 6− 7,12‐dimethylbenz[ a ]anthracene)Cr(CO) 3 .