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H.","year":"1985","journal-title":"Tetrahedron Lett."},{"key":"ref19\/cit19","first-page":"1862","author":"Lubbe M.","year":"2008","journal-title":"Synlett"},{"key":"ref20\/cit20","doi-asserted-by":"crossref","first-page":"1013","DOI":"10.1055\/s-1986-31852","volume":"12","author":"Hojo M.","year":"1986","journal-title":"Synthesis"},{"key":"ref21\/cit21","doi-asserted-by":"crossref","first-page":"830","DOI":"10.1021\/ja00056a002","volume":"115","author":"Molander G. A.","year":"1993","journal-title":"J. Am. Chem. Soc."},{"key":"ref22\/cit22","first-page":"2865","author":"Nguyen V. T. H.","year":"2006","journal-title":"Synthesis"},{"key":"ref23\/cit23a","doi-asserted-by":"crossref","first-page":"688","DOI":"10.1139\/v83-127","volume":"61","author":"Brownbridge P.","year":"1983","journal-title":"Can. J. 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