@article {458,
	title = {Enhanced enantio- and diastereoselectivity via confinement and cation binding: Yang photocyclization of 2-benzoyladamantane derivatives within zeolites},
	journal = {Journal of Organic Chemistry},
	volume = {67},
	number = {24},
	year = {2002},
	note = {ISI Document Delivery No.: 620AATimes Cited: 5Cited Reference Count: 60},
	month = {Nov},
	pages = {8339-8350},
	type = {Article},
	abstract = {Irradiation of 2-benzoyladamantane derivatives in zeolites yields the endo-cyclobutanols as the only photoproduct via a gamma-hydrogen abstraction process. The cyclobutanols readily undergo retro-aldol reaction to give delta-ketoesters. The enantiomeric excess (ee) in the endo-cyclobutanols is measured by monitoring the ee in the ketoesters. Whereas in solution the ee in the product ketoester is zero, within achiral NaY zeolite, in the presence of a chiral inductor such as pseudoephedrine, ee{\textquoteright}s up to 28\% have been obtained. The influence of zeolite on several chiral esters of 2-benzoyladamantane-2-carboxylic acids has also been examined. Whereas in solution the diastereomeric excess is <15\%, in zeolite the delta-ketoesters are obtained in 79\% de (best examples). Ab initio computations suggest that enhancement of chiral induction within zeolites is likely to be due to cation complexation with the reactant ketone. Alkali ion-organic interaction, a powerful tool, is waiting to be fully exploited in photochemical and thermal reactions. In this context zeolites could be a useful medium as one could view them as a reservoir of "naked" alkali ions that are only partially coordinated to the zeolite walls.},
	keywords = {ABSOLUTE ASYMMETRIC-SYNTHESIS, ACID-DERIVATIVES, CATALYSTS, COMPLEXES, EPOXIDATION, INDUCTION, PHOTOREACTIONS, SOLID-STATE, STATE ORGANIC-PHOTOCHEMISTRY, TROPOLONE ETHER},
	isbn = {0022-3263},
	url = {<Go to ISI>://000179509400006},
	author = {Natarajan, A. and Joy, A. and Kaanumalle, L. S. and Scheffer, J. R. and Ramamurthy, V.}
}
@article {483,
	title = {Studies toward the synthesis of contignasterol: Functionalization of the steroidal A,B ring system},
	journal = {Synthetic Communications},
	volume = {32},
	number = {19},
	year = {2002},
	note = {ISI Document Delivery No.: 595TJTimes Cited: 2Cited Reference Count: 12},
	pages = {2991-3002},
	type = {Article},
	abstract = {The synthesis of androstane-3alpha,4beta,6alpha,7beta-tetrol-17-one (2), a potentially key intermediate for the preparation of contignasterol (1), was achieved by functionalization of the A,B-ring portion or the readily available androst-4-ene-3,17-dione (3).},
	keywords = {EPOXIDATION, lithium, ring opening, stereoselective reduction, steroid},
	isbn = {0039-7911},
	url = {<Go to ISI>://000178124600011},
	author = {Rogers, C. and Shen, Y. P. and Burgoyne, D. and Piers, E.}
}
@article {3633,
	title = {Improved protocols for the synthesis and halogenation of sterically hindered metalloporphyrins},
	journal = {Synthesis-Stuttgart},
	number = {11},
	year = {1996},
	note = {ISI Document Delivery No.: VV383Times Cited: 31Cited Reference Count: 38},
	month = {Nov},
	pages = {1320-\&},
	type = {Article},
	abstract = {Improved procedures are described for the synthesis of meso-tetrakis(2,6-dichlorophenyl)porphyrin and for subsequent perhalogenation of the porphyrin ring.},
	keywords = {ACCESS, CATALYSTS, CATALYTIC OXYGENATION, EASY, EFFICIENT CATALYSTS, EPOXIDATION, halogenated porphyrins, HYDROXYLATION, metalloporphyrins halogenation, OXIDATION, OXIDATION REACTIONS, porphyrins, TETRAARYLPORPHYRINS, TETRAMESITYLPORPHYRIN, TETRAPHENYLPORPHYRINS},
	isbn = {0039-7881},
	url = {<Go to ISI>://A1996VV38300016},
	author = {Chorghade, M. S. and Dolphin, D. and Dupre, D. and Hill, D. R. and Lee, E. C. and Wijesekera, T. P.}
}
@article {3850,
	title = {Porphyrins bearing halogens at the meso-phenyl and beta-pyrrolic positions: Synthesis and spectral properties},
	journal = {Bulletin De La Societe Chimique De France},
	volume = {133},
	number = {7-8},
	year = {1996},
	note = {ISI Document Delivery No.: VN339Times Cited: 27Cited Reference Count: 58},
	pages = {765-775},
	type = {Article},
	abstract = {The synthesis of symmetrical porphyrins chlorinated at both ortho positions of the meso-aryl substituents, and the chlorination and bromination of the beta-pyrrole positions is reported. The beta-chlorination of meso-tetraphenylporphyrin via its nickel(II) complex is also described. In addition, we communicate the first perchlorination of tetramesitylporphyrin, where halogen substitution occurred at the beta-pyrrolic positions as well as at both the vacant meta positions of the trimethylphenyl groups. The iron complexes of these various polyhalogenated porphyrins are also described, since they are robust and efficient catalysts in oxidation reactions.},
	keywords = {6-dichlorophenyl) porphyrin, bromination, CATALYST, CHLORINATION, COMPLEXES, EASY ACCESS, EFFICIENT CATALYSTS, EPOXIDATION, home, iron porphyrin, IRON(III) PORPHYRINS, METALLOPORPHYRIN, METALLOPORPHYRINS, OXIDATION, SELECTIVE AIR-OXIDATION, TETRAARYLPORPHYRINS, tetrakis(2, TETRAMESITYLPORPHYRIN, TETRAPHENYLPORPHYRINS},
	isbn = {0037-8968},
	url = {<Go to ISI>://A1996VN33900018},
	author = {Wijesekera, T. and Dupre, D. and Cader, M. S. R. and Dolphin, D.}
}
@article {3288,
	title = {METALLOPHTHALOCYANINES AS POSSIBLE LIGNIN PEROXIDASE MODELS},
	journal = {Bioorganic \& Medicinal Chemistry},
	volume = {3},
	number = {5},
	year = {1995},
	note = {ISI Document Delivery No.: RA974Times Cited: 5Cited Reference Count: 31},
	month = {May},
	pages = {471-477},
	type = {Article},
	abstract = {Several metalloporphyrins, particularly highly chlorinated water soluble meso-tetraphenylporphyrins, have been to be good biomimetics of the lignin peroxidases which degrade lignin in vivo. Metal complexes of the water soluble phthalocyaninetetrasulfonic acid have been examined as catalysts for the oxidation of lignin since the phthalocyanines are readily available and inexpensive. The copper(II), nickel(II) and cobalt(II) complexes showed little catalytic activity towards the oxidation of veratryl alcohol (a substrate of the lignin peroxidases). The iron(III) and manganese(III) complexes on the other hand were able to catalyze the oxidation of veratryl alcohol, 4-ethoxy-3-methoxyphenyl-glycerol-beta-guaiacyl ether (a beta-O-4-dimer) and 1-(4-ethoxy-3-methoxy)-2-(4-methoxyphenyl)-1,3-propanediol (a beta-1 dimer). These catalysts are, however, much less stable than the halogenated meso-tetraphenylporphyrins and this lower stability, which is dependent upon pH and the oxidant, limits their use as catalysts.},
	keywords = {BASIDIOMYCETE, CATALYSIS, DEGRADING ENZYME, EPOXIDATION, OXYGEN, PHANEROCHAETE-CHRYSOSPORIUM, PURIFICATION},
	isbn = {0968-0896},
	url = {<Go to ISI>://A1995RA97400001},
	author = {Cui, F. T. and Dolphin, D.}
}
@article {2986,
	title = {BIS(ALKOXY)RUTHENIUM(IV) PORPHYRIN COMPLEXES AND AEROBIC OXIDATION OF ALCOHOLS},
	journal = {Journal of the Chemical Society-Chemical Communications},
	number = {23},
	year = {1994},
	note = {ISI Document Delivery No.: PW348Times Cited: 25Cited Reference Count: 14},
	month = {Dec},
	pages = {2669-2670},
	type = {Article},
	abstract = {The complex trans-Ru-VI(tmp)(O)(2) (tmp = dianion of 5,10,15,20-tetramesitylporphyrin) oxidizes species, of which the bis(isopropoxy) complex has been characterized crystallographically.},
	keywords = {CRYSTAL, EPOXIDATION, REACTIVITY, RUTHENIUM OXO COMPLEXES},
	isbn = {0022-4936},
	url = {<Go to ISI>://A1994PW34800008},
	author = {Cheng, S. Y. S. and Rajapakse, N. and Rettig, S. J. and James, Brian R.}
}
