Regiospecific Introduction Of 4 Substituents To Porphyrin Systems At Antipodal Pyrrolenic Positions
Crossley, M. J., Burn P. L., Chew S. S., Cuttance F. B., and Newsom I. A.
Journal Of The Chemical Society-Chemical Communications, nov, Volume
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, Number 21, p.1564–1566, (1991)
Abstract