@article {5185,
	title = {2000 Alfred Bader Award Lecture - In the footsteps of Pasteur: asymmetric induction in the photochemistry of crystalline ammonium carboxylate salts},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {79},
	number = {4},
	year = {2001},
	note = {ISI Document Delivery No.: 429PNTimes Cited: 51Cited Reference Count: 52},
	month = {Apr},
	pages = {349-357},
	type = {Article},
	abstract = {This review describes the development of a new, synthetically useful method of asymmetric synthesis in organic photochemistry. Similar in many ways to the Pasteur procedure for resolving racemic carboxylic acids and organic amines, the method relies on the use of crystalline organic salts in which the enantioselectivity of a photochemical reaction of an achiral organic ion (for example, a carboxylate anion) is governed in the solid state by the presence of an optically pure counterion (for example, an optically active ammonium ion). Such optically pure counterions are termed ionic chiral auxiliaries. Salts containing ionic chiral auxiliaries are required to crystallize in chiral space groups, which provide the asymmetric environment necessary for chiral induction. Using this methodology, we have obtained near-quantitative optical yields in a wide variety of photochemical reactions.},
	keywords = {ABSOLUTE-CONFIGURATION CORRELATION, ACID-DERIVATIVES, asymmetric synthesis, chiral auxiliaries, crystal structure-reactivity relationships, di-pi-methane, GEOMETRIC REQUIREMENTS, II REACTION, ionic chiral auxiliaries, ORGANIC-PHOTOCHEMISTRY, PHOTOCHEMISTRY, solid state, SOLID-STATE PHOTOCHEMISTRY, STRUCTURE-REACTIVITY RELATIONSHIPS, YANG PHOTOCYCLIZATION REACTION},
	isbn = {0008-4042},
	url = {<Go to ISI>://000168526300001},
	author = {Scheffer, J. R.}
}
@article {5187,
	title = {Enantioselective photochemical synthesis of a beta-lactam via the solid state ionic chiral auxiliary method},
	journal = {Synthesis-Stuttgart},
	number = {8},
	year = {2001},
	note = {ISI Document Delivery No.: 448GETimes Cited: 12Cited Reference Count: 20Sp. Iss. SI},
	pages = {1253-1257},
	type = {Article},
	abstract = {Photolysis of crystals of a carboxylic acid-containing N,N-dialkylarylglyoxylamide to which an optically pure ammonium ion (the ionic chiral auxiliary) has been attached through a salt bridge leads to a 91\% isolated yield of a beta -lactam in greater than 99\% enantiomeric excess. Suspension of the crystals in hexane allows the photoreaction to be carried out on a 500 mg scale, thus demonstrating the synthetic utility of the solid stare ionic chiral auxiliary approach to asymmetric synthesis.},
	keywords = {ACHIRAL OXO AMIDE, ACID, asymmetric synthesis, beta-lactam, chiral auxiliaries, CRYSTALLINE STATE, HOST, INCLUSION COMPLEXES, PHOTOCHEMISTRY, PHOTOCYCLIZATION, solid state},
	isbn = {0039-7881},
	url = {<Go to ISI>://000169617900022},
	author = {Scheffer, J. R. and Wang, K. Y.}
}
