@article { ISI:000287163000011,
	title = {Construction of the 5,10b-phenanthridine skeleton using [3+2]-cycloaddition of a non-stabilized azomethine ylide: total synthesis of (+/-)-maritidine and (+/-)-crinine alkaloids},
	journal = {European Journal of Organic Chemistry},
	number = {4},
	year = {2011},
	month = {FEB},
	pages = {740-750},
	publisher = {WILEY-V C H VERLAG GMBH},
	address = {PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY},
	abstract = {<p>Vicinal quaternary and tertiary stereocenters of the 5,10b-phenanthridine skeleton 1 are constructed simultaneously in one step by the [3+2]-cycloaddition of non-stabilized azomethine ylide 9, generated by sequential double desilylation of 10 utilizing silver(I) fluoride as a one-electron oxidant. The regioas well as stereochemical origin of this cycloaddition reaction is explained through a favorable transition state 9{\textquoteright}{\textquoteright}. The strategy is successfully applied for the total synthesis of the biologically active alkaloids (+/-)-maritidine (1a), (+/-)-crinine (1b), and their analogues (1d, 1e, and 1f).</p>},
	keywords = {alkaloids, Azomethine ylides, Cycloaddition, Natural products, Ylides},
	issn = {1434-193X},
	doi = {10.1002/ejoc.201001263},
	author = {Pandey, Ganesh and Gupta, Nishant R. and Gadre, Smita R.}
}
