PBr₃-DMF Assisted Elimination of a Highly Hindered Diallylic Tertiary Alcohol in a Bicyclic System: Synthesis of a Key Intermediate Useful for the Total Synthesis of Forskolin

References

• Bhat , S. V. , Bajwa , B. S. , Dornauer , H. , de Souza , N. J. and Fehlhaber , H. W. 1977 . Tetrahedron Lett. , : 1669
   Google Scholar
• Ziegler , F. E. , Jaynes , B. H. and Saindane , M. T. 1987 . J. Am. Chem. Soc. , 109 : 8115
   Google Scholar
• Hashimoto , S S. , Sonegawa , M. and Ikegami , S. 1988 . J. Am. Chem. Soc. , 110 : 3670
   Google Scholar
• Corey , E. J. , Jardine , Da , Silva , P. and Rohloff , J. C. 1988 . J. Am. Chem. Soc. , 110 : 3672
   Web of Science ®Google Scholar
• Colombo , M. I. , Somoza , C. , Zinczuk , J. , Bacigaluppo , J. A. and Ruveda , E. A. 1990 . Tetrahedron Lett. , 39 and references cited therein
   Google Scholar
• Caprioli , J. 1985 . Drug. Dev. Res. , 6 : 193
   Google Scholar
• Erhardt , P. W. 1987 . J. Med. Chem. , 30 : 231
   Web of Science ®Google Scholar
• Lichey , J. , Friedrich , T. , Priesnitz , M. , Biamino , G. , Usinger , P. and Huckauf , H. 1984 . Lancet , : 167
   PubMedGoogle Scholar
• Bold , G. , Chao , S. , Bhide , R. , Wu , S. H. , Patel , D. and Sih , C. J. 1987 . Tetrahedron Lett. , 28 : 1973
   Google Scholar
• Buchanan , J. G. and Sable , H. Z. 1971 . “Selective Organic Trans-formations.” Edited by: Thyagarajan , B. S. Vol. 2 , 17 – 22 .
   Google Scholar
• De Wolfe , R. H. and Young , W. G. 1956 . Chem. Rev. , 56 : 753
   Google Scholar
• Ruzicka , L. and Muller , P. 1939 . Helv. Chim. Acta. , 22 : 416
   Google Scholar
• Sarett , L. H. 1946 . J. Biol. Chem. , 162 : 601
   PubMedGoogle Scholar
• Liotta , D. , Saindane , M. , Sumay , U. , Jamison , W. C.L. , Grossmann , J. and Phillips , P. 1985 . J. Org. Chem. , 50 : 3241
   Google Scholar
• 1971 . Perst, Oxonium ions in Organic Chemistry,” , 100 – 127 . Weinheim/Bergstrasse : Verlag Chemie . For a review of oxygen functions as neighboring group, see
   Google Scholar