References
- Pandey , G. D. and Tiwari , K. P. 1979 . Heterocycles , 12 : 1327 For a recent review on the berbine synthesis see, G. D. Pandey and K. P. Tiwari, Heterocycles, 14, 59 (1980)
- Pandey , G. D. and Tiwari , K. P. 1979 . Heterocycles , 12 : 1483
- Mori , M. , Chiba , K. and Ban , Y. 1977 . K. Chiba at 97th Annual Meeting of Pharmaceutical Society of Japan . 5th April 1977 , London.
- Pandey , G. D. and Tiwari , K. P. 1979 . Synth. Commun. , 9 : 895
- Kametani , T. and Fukumoto , K. 1976 . Acc. Chem. Res. , 9 : 319
- All compounds gave correct elemental analysis
- All m.p.s are uncorrected and were recorded on a ‘Toshniwal’ m.p. apparatus. IR spectra were recorded on a Perkin Elmer 337 spectrophotometer and NMR spectra on a Varian CFT-20 spectrometer. Mass spectra were run on a AEI MS 25 mass spectrometer at 70 eV
- Clemo , G. R. and Swan , G. A. 1946 . J. Chem. Soc. , : 617