REFERENCES
- Heck , R. F. 1982 . Organic Reactions , 27 : 345 – 390 . and references cited therein.
- Heck , R. F. 1985 . Palladium Reagents in Organic Synthesis , London : Academic Press . and references cited therein
- Hiroshige , M. , Hauske , J. R. and Zhou , P. 1995 . Tetrahedron Lett. , 36 : 4567
- Sengupta , S. and Bhattacharyya , S. 1995 . Tetrahedron Lett. , 36 : 4475
- Sugihara , T. and Takebayashi , M. 1995 . Tetrahedron Lett. , 36 : 5547
- Jeffry , T. 1996 . Tetrahedron. , 52 : 10113
- Benhaddou , R. , Czernecki , S. and Ville , G. 1988 . J. Chem. Soc. Chem Commun. , : 247
- Baylis , A. B. and Hillman , M. E.D. German Patent . 2155113 . 1972 . Chem Abstr; 1972, 77, 34174q.
- Basavaiah , D. , Rao , P. D. and Hyma , R. S. 1996 . Tetrahedron. , 52 : 8001
- Kundu , M. K. , Mukherjee , S. B. , Balu , N. , Padmakumar , R. and Bhat , S. V. 1994 . Synlett. , : 444
- Manners , G. D. and Jurd , L. 1979 . Phytochemistry. , 18 : 1037
- Diaz , P. and De Diaz , A. M.P. 1986 . Phytochemistry. , 25 : 2395
- NMR spectra were recorded at 500 MHz with Brucker 500 NMR spectrometer and at 60 MHz with Hitachi R-600 FT-NMR spectrometer in CDCl3 using TMS as internal standard, J values are given in Hz. Infrared spectra were recorded on Nicolet Impact-400 FT IR spectrometer. Nicolet spectrometer. All compounds showed satisfactory elemental analysis.