References
- Mannich , G. and Dannehl , M. 1938 . Ber. , 71 : 1899
- Povarov , L. S. , Grigos , V. I. and Mikhailov , B. M. 1963 . Izv. Akad. Nauk SSSR, Ser. Khim. , 11 : 2039 C. A. 60, 5451(1964).
- Janzsó , G. and Tökes , A. L. Proceedings of the Royal Irish Academy (in the press).
- March , J. 1977 . Advanced Organic Chemistry: Reactions, Mechanisms, and Structure , 2nd edition , 1127 New York : Me Graw Hill Book Company .
- Leeds , J. P. and Kirst , H. A. 1988 . Synth. Commun. , 18 : 777