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Neospiroenones. Synthesis of 10,11-dimethoxy-1,6,6-trimethyl-5,6,8,12b-tetrahydrobenzo[d,f]indol-4(3H)-one and 10,11-dimethoxy-6,6-dimethyl- 1,5,6,12b-tetrahydrobenzo[d,f]indol-2(8H)-one

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Abstract

The three-component condensation of isobutyraldehyde, 3,4-dimethoxyphenylacetonitrile, and p-methylanisole or anisole in the presence of concentrated sulfuric acid affords neospiroenone systems.

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References

  1. K. W. Bently, J. W. Lewis, J. B. Taylor, J. Chem. Soc. C, 1969, 1945.

  2. K. L. Stuart, C. Chambers, D. Byfield, J. Chem. Soc. C, 1969, 1681.

  3. A. R. Battersby, A. K. Bhatnager, P. Hackett, C. W. Thonber, J. Staunton, J. Chem. Soc., Perkin Trans. 1, 1981, 2002.

  4. S. M. Kupchan, C. Kim, J. Org. Chem., 1976, 41, 3210.

    Article  CAS  Google Scholar 

  5. S. M. Kupchan, A. J. Liepa, V. Kameswaran, R. F. Bryan, J. Am. Chem. Soc., 1973, 95, 6861.

    Article  CAS  Google Scholar 

  6. S. M. Kupchan, O. P. Dhingra, C. Kim, V. Kameswaran, J. Org. Chem., 1978, 43, 2521.

    Article  CAS  Google Scholar 

  7. W. Huang, O. V. Singh, C. Chen, S. Lee, Helv. Chim. Acta, 2004, 87, 167.

    Article  CAS  Google Scholar 

  8. H. Hamamoto, Y. Shiozaki, H. Nambu, K. Hata, H. Tohma, Y. Kita, Chem. Eur. J., 2004, 10, 4977.

    Article  CAS  Google Scholar 

  9. H. Hamamoto, Y. Shiozaki, H. Nambu, K. Hata, H. Tohma, Y. Kita, Chem. Pharm. Bull., 2004, 52, 1231.

    Article  CAS  Google Scholar 

  10. R. Pingaew, S. Ruchirawat, Synlett, 2007, 2363.

  11. H. Klünenberg, C. Schäffer, H.-J. Schäffer, Tetrahedron Lett., 1982, 23, 4581.

    Article  Google Scholar 

  12. Yu. V. Shklyaev, Yu. V. Nifontov, A. S. Shashkov, S. I. Firgang, Izv. Akad. Nauk, Ser. Khim., 2002, 2075 [Russ. Chem. Bull., Int. Ed., 2002, 51, 2234].

    Google Scholar 

  13. Yu. V. Shklyaev, M. A. Eltsov, Yu. S. Rozhkova, A. G. Tolstikov, V. M. Dembitsky, Heteroat. Chem., 2004, 15, 486.

    Article  CAS  Google Scholar 

  14. Yu. V. Shklyaev, M. A. El’tsov, O. A. Maiorova, Zh. Org. Khim., 2008, 44, 1343 [Russ. J. Org. Chem. (Engl. Transl.), 2008, 44, 1343].

    Google Scholar 

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Correspondence to Yu. V. Shklyaev.

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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1222–1227, June, 2010.

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Shklyaev, Y.V., El’tsov, M.A., Rozhkova, Y.S. et al. Neospiroenones. Synthesis of 10,11-dimethoxy-1,6,6-trimethyl-5,6,8,12b-tetrahydrobenzo[d,f]indol-4(3H)-one and 10,11-dimethoxy-6,6-dimethyl- 1,5,6,12b-tetrahydrobenzo[d,f]indol-2(8H)-one. Russ Chem Bull 59, 1248–1253 (2010). https://doi.org/10.1007/s11172-010-0229-6

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  • DOI: https://doi.org/10.1007/s11172-010-0229-6

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