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Table 2 NMR data for acetamidines 2, 4, 7 and 8.

From: Synthesis and properties of acetamidinium salts

  1H NMR 13C NMRa
Compound δ(CH3) δ(NH2)2 δ(X)n- δ(CH3) δ(C(NH2)2) δ(X)n-
2 2.20a 7.96; 8.38   18.4 168.9  
  2.10b 8.39; 8.90     
4 2.18a 8.03; 8.41 8.41 18.4 168.9 171.5
  2.06b 9.71 8.42    
7 2.16a 8.04; 8.38   18.4 168.8 173.8
8 2.32a 8.00; 8.40   18.6 169.0  
  2.09b 8.30; 8.84     
  1. a in D2O
  2. b in DMSO-d6