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R.","year":"1996","journal-title":"Tetrahedron Lett."},{"key":"ref7\/cit7j","doi-asserted-by":"crossref","first-page":"1852","DOI":"10.1055\/s-2000-8220","author":"Tashiro T.","year":"2000","journal-title":"Synthesis"},{"key":"ref7\/cit7k","doi-asserted-by":"crossref","first-page":"1825","DOI":"10.1021\/ol015828k","volume":"3","author":"White R. D.","year":"2001","journal-title":"Org. Lett."},{"key":"ref7\/cit7l","doi-asserted-by":"crossref","first-page":"2227","DOI":"10.1016\/S0040-4039(02)00212-5","volume":"43","author":"Miyaoka H.","year":"2002","journal-title":"Tetrahedron Lett."},{"key":"ref7\/cit7m","doi-asserted-by":"crossref","first-page":"1123","DOI":"10.1021\/ol049918b","volume":"6","author":"White R. D.","year":"2004","journal-title":"Org. Lett."},{"key":"ref8\/cit8","unstructured":"For a typical example, the intramolecular Diels\u2212Alder reaction of the (\u00b1)-trienone5afforded a mixture of the (\u00b1)-cis-decalins6and7in a ratio of 89.7:10.3. Furthermore, the mixture of6and7was isomerized by NaOMe in MeOH forming an inseparable mixture of the (\u00b1)-trans-decalin8and6and7in a ratio of 42.7:47.2:10.1. See ref7b."},{"key":"ref9\/cit9a","doi-asserted-by":"crossref","first-page":"744","DOI":"10.1055\/s-1999-2723","author":"Hodgson D. M.","year":"1999","journal-title":"Synlett"},{"key":"ref9\/cit9b","doi-asserted-by":"crossref","first-page":"10085","DOI":"10.1016\/S0040-4039(00)01794-9","volume":"41","author":"R\u00fceger H.","year":"2000","journal-title":"Tetrahedron Lett."},{"key":"ref10\/cit10","first-page":"99","author":"Wang Y.","year":"2002","journal-title":"Synthesis"},{"key":"ref11\/cit11a","doi-asserted-by":"crossref","first-page":"7402","DOI":"10.1021\/ja971070h","volume":"119","author":"Roush W. R.","year":"1997","journal-title":"J. Am. Chem. Soc."},{"key":"ref11\/cit11b","doi-asserted-by":"crossref","first-page":"1879","DOI":"10.1055\/s-1999-2961","author":"Sch\u00fcrer S. C.","year":"1999","journal-title":"Synlett"},{"key":"ref11\/cit11c","doi-asserted-by":"crossref","first-page":"1543","DOI":"10.1021\/ol025772+","volume":"4","author":"Roush W. R.","year":"2002","journal-title":"Org. Lett."},{"key":"ref12\/cit12","unstructured":"Among the solvents examined (xylene, toluene, benzene, and CH2Cl2), xylene was found to be the best for yield."},{"key":"ref13\/cit13","unstructured":"For example, treatment of18(four diastereomers) with NaOMe in dilute MeOH solution (0.02 M) and neutralization with 1 N HCl afforded a mixture of19and20without hydrolysis of the methyl ester moiety. Attempted separation of19and20by silica gel chromatography failed."},{"key":"ref14\/cit14a","doi-asserted-by":"crossref","first-page":"7216","DOI":"10.1021\/jo00077a053","volume":"58","author":"Molander G. A.","year":"1993","journal-title":"J. Org. 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H.","year":"1973","journal-title":"Tetrahedron Lett."},{"key":"ref17\/cit17","unstructured":"Alkylation of22under various conditions resulted in low yield or a complex mixture. See ref7l."},{"key":"ref18\/cit18a","doi-asserted-by":"crossref","first-page":"762","DOI":"10.1055\/s-1983-30506","author":"Benneche T.","year":"1983","journal-title":"Synthesis"},{"key":"ref18\/cit18b","doi-asserted-by":"crossref","first-page":"9832","DOI":"10.1016\/j.tet.2006.08.028","volume":"62","author":"G\u00f3mez C.","year":"2006","journal-title":"Tetrahedron"},{"key":"ref19\/cit19","unstructured":"\u03b1-Alkylation of23took place from an equatorial orientation in a completely stereoselective manner. For similar equatorial alkylations, see:"},{"key":"ref19\/cit19a","doi-asserted-by":"crossref","first-page":"689","DOI":"10.1021\/jo01278a041","volume":"32","author":"Ireland R. E.","year":"1967","journal-title":"J. Org. Chem."},{"key":"ref19\/cit19b","doi-asserted-by":"crossref","first-page":"142","DOI":"10.1021\/jo00838a032","volume":"34","author":"Ireland R. E.","year":"1969","journal-title":"J. Org. Chem."},{"key":"ref19\/cit19c","doi-asserted-by":"crossref","first-page":"1071","DOI":"10.1021\/ol017134h","volume":"4","author":"Vishnumuthy K.","year":"2002","journal-title":"Org. Lett."},{"key":"ref20\/cit20","unstructured":"It was found that \u03b1-alkylation of23with MeI andt-BuOK and Pinnick oxidation gave the 10-epimer of26as a sole stereoisomer, from which 10-epi-10-isocyano-4-cadinene was synthesized following the same synthetic scheme."},{"key":"ref21\/cit21a","doi-asserted-by":"crossref","first-page":"3476","DOI":"10.1021\/jo020743y","volume":"68","author":"Miyaoka H.","year":"2003","journal-title":"J. Org. 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