Table 8.

Energies for isomeric products obtained from DFT-B3LYP calculations.

Most stable isomer	Least stable isomer	ΔE for isomers (kcal mol−1)
9b	9b’	1.47
9e	9e’	0.74
9f	9f’	0.56
10e	10e’	0.76
10f	10f’	0.58
11b	11b’	1.44
11e	11e’	0.53