@article {532,
	title = {Enhanced regioselectivity of Yang photocyclization in the crystalline state},
	journal = {Organic Letters},
	volume = {4},
	number = {7},
	year = {2002},
	note = {ISI Document Delivery No.: 536BDTimes Cited: 9Cited Reference Count: 13},
	month = {Apr},
	pages = {1071-1074},
	type = {Article},
	abstract = {[GRAPHICS] In contrast to the solution state, where Yang photocyclization of ketones of general structure 1 leads to equal amounts of cyclobutanols 2 and 3 (by abstraction of H-A and H-B, respectively), irradiation in the crystalline state is much more regioselective, favoring either 2 or 3 depending on the nature of the substituent X. X-ray crystallography and molecular mechanics calculations reveal the source of this remarkable solid-state regioselectivity.},
	keywords = {ABSTRACTION, GAMMA, GEOMETRIC REQUIREMENTS, II REACTION, PHOTOCHEMISTRY, SOLID-STATE},
	isbn = {1523-7060},
	url = {<Go to ISI>://000174680100006},
	author = {Vishnumurthy, K. and Cheung, E. and Scheffer, J. R. and Scott, C.}
}
