@article {6618,
	title = {Nickel-catalyzed cross-couplings of 4-diethylphosphonooxycoumarins with organozinc reagents: An efficient new methodology for the synthesis of 4-substituted coumarins},
	journal = {Journal of Organic Chemistry},
	year = {2001},
	pages = {7875-7878},
	doi = {10.1021/jo010452+},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/11701051},
	author = {J. Wu and Z. Yang}
}
