@article {639,
	title = {N-bromosuccinimide promoted ring expansion reactions: Diastereoselective formation of functionalized azaspirocyclic cyclopentanones},
	journal = {Synlett},
	number = {14},
	year = {2003},
	note = {ISI Document Delivery No.: 741GTTimes Cited: 10Cited Reference Count: 30},
	month = {Nov},
	pages = {2131-2134},
	type = {Article},
	abstract = {N-Bromosuccinimide (NBS) induces ring enlargements of 2-(1-hydroxycyclobutyl)-p-toluenesulfonylenamides such as 1. These high yielding reactions typically occur with good diastereoselectivity. This ring expansion protocol under neutral conditions forms compounds that are potentially versatile intermediates for the construction of spirocycle-containing alkaloids.},
	keywords = {bromine, CONSTRUCTION, entry, HALICHLORINE, ION, KETONES, PINNAIC ACID, piperidines, REDUCTION, ring expansion, spiro compounds, SPIROCYCLIC CORE, STEREOSELECTIVE},
	isbn = {0936-5214},
	url = {<Go to ISI>://000186450900005},
	author = {Hurley, P. B. and Dake, G. R.}
}
@article {5069,
	title = {Construction of azaspirocyclic ketones through alpha-hydroxyiminium ion or alpha-siloxy epoxide semipinacol rearrangements},
	journal = {Organic Letters},
	volume = {3},
	number = {13},
	year = {2001},
	note = {ISI Document Delivery No.: 445ZDTimes Cited: 41Cited Reference Count: 22},
	month = {Jun},
	pages = {2109-2112},
	type = {Article},
	abstract = {[GRAPHICS] Semipinacol-type rearrangements to produce azaspirocyclic ketones are presented. The yields and stereoselectivities of these reactions range from 67-94\% yield and 2.8:1 to 1:0 diastereoselectivity, respectively.},
	keywords = {ACIDS, ALDOL PROCESS, ALKALOIDS, HALICHLORINE},
	isbn = {1523-7060},
	url = {<Go to ISI>://000169487700037},
	author = {Fenster, M. D. B. and Patrick, B. O. and Dake, G. R.}
}
