First synthesis of methylated hypocrellin and its fluorescent excited state: a cautionary tale.

J Org Chem

Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P. R. China.

Published: March 2003

Methylated hypocrellins were obtained and characterized by satisfactory 1HNMR, UV-vis, IR, and mass data, and their absorption and fluorescence emission spectra were studied. A previous report of methylated hypocrellin (J. Phys. Chem. A 1999, 103, 7949) appears to be in error.

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http://dx.doi.org/10.1021/jo026554xDOI Listing

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