1. For some reviews of the chemistry of N-acyl imines, see Zaug, HE (1982) Synthesis 85, 181
2. For some reviews of the chemistry of N-acyl imines, Hiemstra H, Speckamp WN (1991) Additions to N-acyl iminium ions. In: Trost BM, Fleming I (eds) Comprehensive Organic Synthesis, Pergamon, Oxford, Vol 2, p 1047
3. For some reviews of the chemistry of N-acyl imines, Scola PM, Weinreb SM (1989) Chem Rev 89:1525
4. For some reviews of the chemistry of N-acyl imines, Boger DL, Weinreb SM (1987) Hetero Diels-Alder methodology in organic synthesis, Academic Press, Orlando, Chap 2
5. For some reviews of the chemistry of N-acyl imines, Malassa I, Matthies D (1987) Chem-Ztg 111: 181, 253