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Since the adducts were not stable, the addition reactions were not examined with1ain detail (Table1, entries 8\u221211)."},{"key":"ref11\/cit11a","doi-asserted-by":"crossref","first-page":"2673","DOI":"10.1021\/ol070960r","volume":"9","author":"Maio W. A.","year":"2007","journal-title":"Org. Lett."},{"key":"ref11\/cit11b","first-page":"1347","author":"Taylor P. J. M.","year":"2006","journal-title":"Synlett"},{"key":"ref11\/cit11c","doi-asserted-by":"crossref","first-page":"4727","DOI":"10.1021\/ol048036+","volume":"6","author":"Bower J. F.","year":"2004","journal-title":"Org. Lett."},{"key":"ref11\/cit11d","doi-asserted-by":"crossref","first-page":"345","DOI":"10.1021\/ol036153j","volume":"6","author":"Lautens M.","year":"2004","journal-title":"Org. 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