@article {1075,
	title = {Photochemistry of 9-methylbicyclo[3.3.1]nonyl aryl ketones - A novel 1,5-disproportionation of 1,4-hydroxy biradicals and asymmetric induction using the solid-state ionic chiral auxiliary method},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {83},
	number = {9},
	year = {2005},
	note = {ISI Document Delivery No.: 001VETimes Cited: 4Cited Reference Count: 29},
	month = {Sep},
	pages = {1460-1472},
	type = {Article},
	abstract = {A novel 1.5-disproportionation reaction has been discovered for 1,4-hydroxy biradicals derived from the photolysis of 9-methylbicyclo[3.3.1]nonyl phenyl ketones (1), which undergo mainly Yang cyclization both in Solution and the solid state. By applying the solid-state ionic chiral auxiliary method of asymmetric synthesis to the Yang cyclization, enantiomeric excesses as high as 95\% were achieved at high reaction conversions. The origin of the reaction selectivity is discussed with the help of X-ray crystallography. In addition, the solid-state photoreaction of ketone 1b was found to occur in a single crystal-to-single crystal fashion.},
	keywords = {1, 4-hydroxy biradical, asymmetric, BEHAVIOR, CRYSTAL-STRUCTURE, disproportionation, HYDROGEN-BOND, INDUCTION, ionic chiral auxiliary, PHOTOCHEMISTRY, PHOTOCYCLIZATION, reaction, REACTIVITY CORRELATIONS, SALTS, single crystal-to-single crystal},
	isbn = {0008-4042},
	url = {<Go to ISI>://000234570000030},
	author = {Chen, S. and Patrick, B. O. and Scheffer, J. R.}
}
@article {814,
	title = {Enantioselective photochemical synthesis of a simple alkene via the solid state ionic chiral auxiliary approach},
	journal = {Journal of Organic Chemistry},
	volume = {69},
	number = {8},
	year = {2004},
	note = {ISI Document Delivery No.: 811DLTimes Cited: 7Cited Reference Count: 24},
	month = {Apr},
	pages = {2711-2718},
	type = {Article},
	abstract = {Irradiation of cis-bicyclo[4.3.0]non-8-ylacetophenone derivatives (1) in solution and the solid state yields cis-3a,4,5,6,7,7a-hexahydro-1H-indene (2) via a Norrish type II cleavage process. Asymmetric induction studies were conducted by providing the reactants with carboxylic acid substituents to which ionic chiral auxiliaries were attached through salt formation with optically pure amines. Irradiation of the salts (5 in total) in the crystalline state gave enantiomeric excesses of up to 44\%. Single-crystal X-ray diffraction studies were performed on ketone la as well as salts 1d and 1g, and on this basis, the structure-reactivity relationships involved are discussed.},
	keywords = {ELIMINATION, KETONES, PHOTOELIMINATION, REACTIVITY CORRELATIONS, RESOLUTION},
	isbn = {0022-3263},
	url = {<Go to ISI>://000220752500008},
	author = {Chen, S. and Patrick, B. O. and Scheffer, J. R.}
}
