... we investigated whether other stable N-acyl DBN·BPh 4 salts (3b–f) could be synthesized in a ... Table 1. Synthesis of N-Acyl DBN·BPh 4 Salts (3a–f) from DBN (1) and Acyl Chlorides (2a ... DBN·BPh 4 (3b) to give 76% of the corresponding amide (5f) (Table 2, entry 6). Reaction with ...