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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 23, 1993 - Issue 13
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Original Articles

A Simple Access to a Forskolin Precursor

, &
Pages 1923-1927 | Received 25 Jan 1993, Published online: 23 Sep 2006

References

  • Colombo , M. J. , Zinczuk , J. and Ruveda , E. A. 1992 . Tetrahedron , 48 : 963 For a review, see
  • Robbins , J. D. , Laurenza , A. , Kosley , R. W. jr. , O'Malley , G. J. , Spahl , B. and Seamon , K. B. 1991 . J. Med. Chem. , 34 : 3204 and references therein.
  • Koft , E. R. , Kotnis , A. S. and Broadbent , T. A. 1987 . Tetrahedron Lett. , 29 : 2799
  • 1H NMR (200 MHz, CDCl3) ppm: 6.12, (s, H-5), 4.35 (t, H-1), 2.75(s, H-8), 2.28 (s, CH 3-CO-), 2.18 (s, CH 3-C═C), 1.16 (s, CH 3), 1.08 (s, 2 CH 3). 13C NMR (50.3 MHz, CDCl3) ppm: 200.0 (conjugated C═O), 174,5 (lactone C═O), 143.5, 134.3, 133.1, 118.7 (sp2 carbons), 84.5 (C-1), 58.9 (C-8), 42.8, 34.8 (C-4 and C-8a), 33.1 (CH2), 30.4 (double intensity), 28.0, 22.1 (CH2), 21.7, 21.4.
  • Somoza , C. , Darias , J. and Ruveda , E. A. 1989 . J. Org. Chem. , 54 : 1539
  • Berthiaume , G. , Lavallée , J. F. and Deslongchamps , P. 1986 . Tetrahedron Lett. , 27 : 5451
  • Corey , E. J. , da Silva Jardine , P. J. and Rohloff , J. C. 1988 . J. Amer. Chem. Soc. , 110 : 3672

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