REFERENCES
- Shawali , A.S. and Abdelhamid , A.O. 1979 . Bull. Chem. Soc. Jpn. , 49 : 321
- Hassaneen , H.M. , Hilal , Ri, H. , Elwan , N.M. , Harhash , A. and Shawali , A.S. 1984 . J. Heterocycl. Chem. , 21 : 1013
- Wolkoff , P. 1975 . Cand. J. Chem. , 53 : 1333
- Hassaneen , H.M. , Mousa , H.A.H. , Abed , N.M. and Shawali , A.S. 1988 . Heterocycles , 27 : 695
- Aylward , J.B. and Scott , F.L. 1969 . J. Chem. Soc. , B : 1080
- Farag , A.M. and Algharib , M.S. 1988 . Org. Prep. Proc. Int. , 20 : 521
- Eweiss , N.F. and Osman , A. 1980 . J. Heterocycl. Chem. , 17 : 1713
- Fusco , R. and Dalla Croce . 1971 . Gazz. Chem. Ital. , 101 : 703
- Shawali , A.S. 1993 . Chem. Rev. , 93 : 2731
- Behera , R.K. and Nayak , A. 1976 . Indian J. Chem. , 14B ( 3 ) : 223
- Buu-HoI , NG. PH. , Hoan , NG. and Denise Lavit . 1950 . J. Chem. Soc. , : 2130
- 1917 . Kauffmann, Ber. , 50 : 523
- Anelli , P.L. and Croce , P.D. 1981 . Gazz. Chim. Ital. , 111 : 269
- 1892 . Bamberger. Ber. , 25 : 351
- De Neufuille , V. 1890 . Pechmann. Ber. , 23 : 3382