@article {2480,
	title = {Enamides and Enesulfonamides as Nucleophiles: Formation of Complex Ring Systems through a Platinum(II)-Catalyzed Addition/Friedel-Crafts Pathway},
	journal = {Journal of Organic Chemistry},
	volume = {74},
	number = {18},
	year = {2009},
	note = {ISI Document Delivery No.: 492LATimes Cited: 5Cited Reference Count: 90Kozak, Jennifer A. Dodd, Jennifer M. Harrison, Tyler J. Jardine, Katherine J. Patrick, Brian O. Dake, Gregory R.},
	month = {Sep},
	pages = {6929-6935},
	type = {Article},
	abstract = {Cyclic enamine derivatives (enesulfonamides and enamides) tethered to an 1-arylalkynyl fragment undergo a platinum(II)-catalyzed tandem alkyne addition/Friedel-Crafts ring closure to form nitrogen-containing polycyclic structures. Regioselectivity in the initial addition of the enesulfonamide or enamide nucleophile to the platinum(II)-alkyne complex is important. Electron-rich arenes and heterocycles led to the formation of products resulting from an Initial 6-endo cyclization. Twenty-three examples of this process are presented.},
	keywords = {CATALYZED CYCLOISOMERIZATIONS, CLOSING, CYCLIZATION ROUTE, DIASTEREOSELECTIVE SYNTHESIS, ELECTRON-RICH OLEFINS, ENANTIOSELECTIVE REACTIONS, LYCOPODIUM ALKALOIDS, METATHESIS, N-ACYL-ENAMINES, NITROGEN-HETEROCYCLES, REARRANGEMENTS, SKELETAL},
	isbn = {0022-3263},
	url = {<Go to ISI>://000269656400004},
	author = {Kozak, J. A. and Dodd, J. M. and Harrison, T. J. and Jardine, K. J. and Patrick, B. O. and Dake, G. R.}
}
@article {4508,
	title = {Asymmetric induction in the solid state photochemistry of an alpha-mesitylacetophenone derivative through the use of ionic chiral auxiliaries},
	journal = {Tetrahedron Letters},
	volume = {40},
	number = {50},
	year = {1999},
	note = {ISI Document Delivery No.: 258FJTimes Cited: 15Cited Reference Count: 8},
	month = {Dec},
	pages = {8733-8736},
	type = {Article},
	abstract = {Irradiation in the crystalline state of salts formed between alpha-mesitylacetophenone-p-carboxylic acid and a variety of optically pure amines - the so-called {\textquoteright}ionic chiral auxiliary{\textquoteright} approach to asymmetric synthesis - leads to the corresponding 2-indanol in excellent yield and in high enantiomeric excess. X-Ray crystallography reveals the source of the enantioselectivity. (C) 1999 Elsevier Science Ltd. All rights reserved.},
	keywords = {ASYMMETRIC INDUCTION, CARBOXYLATE, CRYSTAL, KETONES, PHOTOCHEMISTRY, REARRANGEMENTS},
	isbn = {0040-4039},
	url = {<Go to ISI>://000083827200004},
	author = {Cheung, E. and Rademacher, K. and Scheffer, J. R. and Trotter, J.}
}
@article {4508,
	title = {Asymmetric induction in the solid state photochemistry of an alpha-mesitylacetophenone derivative through the use of ionic chiral auxiliaries},
	journal = {Tetrahedron Letters},
	volume = {40},
	number = {50},
	year = {1999},
	note = {ISI Document Delivery No.: 258FJTimes Cited: 15Cited Reference Count: 8},
	month = {Dec},
	pages = {8733-8736},
	type = {Article},
	abstract = {Irradiation in the crystalline state of salts formed between alpha-mesitylacetophenone-p-carboxylic acid and a variety of optically pure amines - the so-called {\textquoteright}ionic chiral auxiliary{\textquoteright} approach to asymmetric synthesis - leads to the corresponding 2-indanol in excellent yield and in high enantiomeric excess. X-Ray crystallography reveals the source of the enantioselectivity. (C) 1999 Elsevier Science Ltd. All rights reserved.},
	keywords = {ASYMMETRIC INDUCTION, CARBOXYLATE, CRYSTAL, KETONES, PHOTOCHEMISTRY, REARRANGEMENTS},
	isbn = {0040-4039},
	url = {<Go to ISI>://000083827200004},
	author = {Cheung, E. and Rademacher, K. and Scheffer, J. R. and Trotter, J.}
}
@article {3679,
	title = {Cation to anion triplet-triplet energy transfer in crystalline organic salts},
	journal = {Tetrahedron Letters},
	volume = {37},
	number = {34},
	year = {1996},
	note = {ISI Document Delivery No.: VC820Times Cited: 4Cited Reference Count: 7},
	month = {Aug},
	pages = {6037-6040},
	type = {Article},
	abstract = {Irradiation of crystalline salts formed between sensitizer-linked amines and photochemically reactive carboxylic acids at wavelengths where only the sensitizers absorb leads to characteristic triplet state reactivity of the carboxylate anions. Copyright (C) 1996 Elsevier Science Ltd},
	keywords = {REARRANGEMENTS},
	isbn = {0040-4039},
	url = {<Go to ISI>://A1996VC82000003},
	author = {Gamlin, J. N. and Olovsson, G. and Pitchumani, K. and Ramamurthy, V. and Scheffer, J. R. and Trotter, J.}
}
@article {3679,
	title = {Cation to anion triplet-triplet energy transfer in crystalline organic salts},
	journal = {Tetrahedron Letters},
	volume = {37},
	number = {34},
	year = {1996},
	note = {ISI Document Delivery No.: VC820Times Cited: 4Cited Reference Count: 7},
	month = {Aug},
	pages = {6037-6040},
	type = {Article},
	abstract = {Irradiation of crystalline salts formed between sensitizer-linked amines and photochemically reactive carboxylic acids at wavelengths where only the sensitizers absorb leads to characteristic triplet state reactivity of the carboxylate anions. Copyright (C) 1996 Elsevier Science Ltd},
	keywords = {REARRANGEMENTS},
	isbn = {0040-4039},
	url = {<Go to ISI>://A1996VC82000003},
	author = {Gamlin, J. N. and Olovsson, G. and Pitchumani, K. and Ramamurthy, V. and Scheffer, J. R. and Trotter, J.}
}
@article {2874,
	title = {AN ENANTIOSPECIFIC SYNTHESIS OF 4-METHYLCAMPHOR},
	journal = {Tetrahedron-Asymmetry},
	volume = {4},
	number = {11},
	year = {1993},
	note = {ISI Document Delivery No.: MJ468Times Cited: 10Cited Reference Count: 38},
	month = {Nov},
	pages = {2363-2370},
	type = {Article},
	abstract = {Treatment of (-)-2-methylenebornane (7), derived from (+)-camphor (1), with 45\% HBr /HOAc results in Wagner-Meerwein rearrangement and formation of 4-methylisobornyl bromide (17) in 80-90\% yield. The enantiopurity of (17) was determined by conversion to (+)-4-methylisoborneol (5) and (-)-4-methylcamphor (3).},
	keywords = {CAMPHOR DERIVATIVES, ESTERS, KETONES, NATURAL PRODUCT SYNTHESIS, POTASSIUM, REARRANGEMENTS, ROUTE, STEROID-SYNTHESIS, SYNTHONS},
	isbn = {0957-4166},
	url = {<Go to ISI>://A1993MJ46800024},
	author = {Money, T. and Palme, M. H.}
}
@article {7193,
	title = {CONTROL OF REGIOSELECTIVITY THROUGH RELIEF OF STERIC CROWDING IN THE DI-PI-METHANE PHOTOREARRANGEMENT OF 9,10-ETHENOANTHRACENE DERIVATIVES},
	journal = {Tetrahedron Letters},
	volume = {33},
	number = {12},
	year = {1992},
	note = {ISI Document Delivery No.: HJ784Times Cited: 4Cited Reference Count: 13},
	month = {Mar},
	pages = {1535-1538},
	type = {Article},
	abstract = {Product structures and quantum yields for the solution phase di-pi-methane photorearrangement of the 9,10-ethenoanthracene derivatives 1-4 have been determined. The results are consistent with a model in which relief of steric crowding is the factor that governs regioselectivity.},
	keywords = {BICYCLIC SYSTEMS, NITROBENZOATES, REARRANGEMENTS, solvolysis},
	isbn = {0040-4039},
	url = {<Go to ISI>://A1992HJ78400002},
	author = {Chen, J. X. and Pokkuluri, P. R. and Scheffer, J. R. and Trotter, J.}
}
@article {7193,
	title = {CONTROL OF REGIOSELECTIVITY THROUGH RELIEF OF STERIC CROWDING IN THE DI-PI-METHANE PHOTOREARRANGEMENT OF 9,10-ETHENOANTHRACENE DERIVATIVES},
	journal = {Tetrahedron Letters},
	volume = {33},
	number = {12},
	year = {1992},
	note = {ISI Document Delivery No.: HJ784Times Cited: 4Cited Reference Count: 13},
	month = {Mar},
	pages = {1535-1538},
	type = {Article},
	abstract = {Product structures and quantum yields for the solution phase di-pi-methane photorearrangement of the 9,10-ethenoanthracene derivatives 1-4 have been determined. The results are consistent with a model in which relief of steric crowding is the factor that governs regioselectivity.},
	keywords = {BICYCLIC SYSTEMS, NITROBENZOATES, REARRANGEMENTS, solvolysis},
	isbn = {0040-4039},
	url = {<Go to ISI>://A1992HJ78400002},
	author = {Chen, J. X. and Pokkuluri, P. R. and Scheffer, J. R. and Trotter, J.}
}
@article {7244,
	title = {PROTOTROPIC CONTROL OF ORGANIC-PHOTOCHEMISTRY - HYDROGEN-BONDING EFFECTS ON THE DI-PI-METHANE PHOTOREARRANGEMENT},
	journal = {Journal of Organic Chemistry},
	volume = {57},
	number = {1},
	year = {1992},
	note = {ISI Document Delivery No.: GY184Times Cited: 6Cited Reference Count: 54},
	month = {Jan},
	pages = {241-247},
	type = {Article},
	abstract = {The IR and UV spectra as well as the photochemistry of the isopropyl monoester of dibenzobarrelene dicarboxylic acid 2 were analyzed in detail in several media. A correlation was found between the photochemical results and the spectroscopically detected hydrogen-bonded structures of 2. An equilibrium between dimeric (2-HD) and intramolecularly hydrogen bonded (2-HI) structures was detected by IR spectroscopy in nonpolar solvents having weak hydrogen-bond-accepting capabilities. The ratio of the two regioisomeric dibenzosemibullvalene products 3 and 4 formed in the di-pi-methane photorearrangement of 2 was found to correlate with such an equilibrium, and it was concluded that intramolecular (2-HI) and dimeric (2-HD) hydrogen-bonded structures display significantly different photochemical reactivity. The infrared spectra and the photoproduct ratio in polar solvents possessing hydrogen-bond-accepting capabilities (e.g., acetonitrile), on the other hand, turned out to be concentration independent. High regioselectivity was found in the solid state where the dimer 2-HD is the only species, leading to 4 as the major product. In contrast, 3 was obtained preferentially in aqueous sodium bicarbonate solutions where 2 exists as the carboxylate anion. Supporting evidence regarding the different hydrogen bonding arrangements in 2 was found in the solvent effects on its UV spectra.},
	keywords = {ABSORPTION, DIBENZOBARRELENES, EXCITED-STATE, LASER EXCITATION FLUORESCENCE, METHYL SALICYLATE, ORTHO-HYDROXYBENZALDEHYDE, PHOTOISOMERIZATION, REARRANGEMENTS, SOLID-STATE, STATE PROTON-TRANSFER},
	isbn = {0022-3263},
	url = {<Go to ISI>://A1992GY18400043},
	author = {Garciagaribay, M. A. and Scheffer, J. R. and Watson, D. G.}
}
