Li Carbamate Solvent DG dimerization LiCH2OCON(CH3)2 Et2O 5.06 LiCH2OCON(CH3)2 THF -3.81 LiCHPhOCON(CH3)2 RR Et2O 16.6 LiCHPhOCON(CH3)2 RR THF 16.7 LiCHPhOCON(CH3)2 RS Et2O 16.8 LiCHPhOCON(CH3)2 RS THF 18.8

Table 6: Dimerization energies (based on most stable conformation of Dimer 2) of lithium carbamates (kcal/mol).