References
- Pandey , G. D. and Tiwari , K. P. Indian J. Chem. , in press
- Pandey , G. D. and Tiwari , K. P. Indian J. Chem. , (under publication)
- All m.p.'s are uncorrected and were recorded on a ‘Toshniwal’ melting point apparatus. TLC was done on Silicagel G (Merck). IR spectra were recorded on IR-33 spectrophotometer. NMR spectra were determined on a Varian CFT-20 spectrometer using TMS as an internal standard. Mass spectra were recorded on an AEI MS 25 mass spectrometer. All compounds gave correct elemental analysis
- Buck , J. S. , Perkin , W. H. Jr. and Stevens , T. S. 1925 . J. Chem. Soc. , 127 : 1462