@article {4493,
	title = {A novel stepwise degradation of porphyrins. Synthesis and structural characterization of meso-tetraphenylchlorophinato nickel(II) and meso-tetraphenylsecochlorinato nickel(II)},
	journal = {Journal of the American Chemical Society},
	volume = {121},
	number = {11},
	year = {1999},
	note = {ISI Document Delivery No.: 180AUTimes Cited: 27Cited Reference Count: 33},
	month = {Mar},
	pages = {2609-2610},
	type = {Article},
	keywords = {CARBAPORPHYRINS, CLEAVAGE, DERIVATIVES, FLEXIBILITY, HYDROPORPHYRINS, macrocycle, SYSTEM},
	isbn = {0002-7863},
	url = {<Go to ISI>://000079363300039},
	author = {Bruckner, C. and Sternberg, E. D. and Macalpine, J. K. and Rettig, S. J. and Dolphin, D.}
}
@article {4215,
	title = {Formation of a meso-tetraphenylsecochlorin and a homoporphyrin with a twist},
	journal = {Journal of Organic Chemistry},
	volume = {63},
	number = {7},
	year = {1998},
	note = {ISI Document Delivery No.: ZH679Times Cited: 40Cited Reference Count: 41},
	month = {Apr},
	pages = {2094-2098},
	type = {Article},
	abstract = {The osmium tetroxide-mediated dihydroxylation of meso-tetraphenylporphyrin leads to the formation of the vic-diol meso-tetraphenyl-2,3-vic-diol-2,3-chlorin. The corresponding Ni(II) complex was converted by lead tetraacetate into (meso-tetraphenyl-2,3-secochlorinato-2,3-dialdehyde)nickel(II) This novel pigment undergoes an almost quantitative, intramolecular double acetal formation when treated with methanol in the presence of acid to produce a porphyrinoid in which one pyrrolic unit is formally replaced by a six-membered ring. An X-ray crystal structure determination, the first for such a homoporphyrin, reveals the severely twisted conformation of its chromophore.},
	keywords = {beta, CHLOROPHIN, HYDROPORPHYRINS, OXIDATION, PORPHYRIN ANALOG, SYSTEM},
	isbn = {0022-3263},
	url = {<Go to ISI>://000073136500012},
	author = {Bruckner, C. and Rettig, S. J. and Dolphin, D.}
}
