Abstract
he structure of picene derivative previously isolated from Yabari bituminous coal has been established by comparing with synthetic 2. 9-dimethyl-picene.
Chrsene derivative isolated from Yubari bituminous coal was identified by analysis, ultraviolet and infrared absorption spectra, conversion to the 2, 4, 7-trinitrofluorenone complex.
It was recognized that these two materials were identified to 2. 9-dimethylpicene and 1, 2, 3, 4-tetrahydro 2, 2. 9-trimethylpicene respectively.
The probable formation of these materials are discussed.
