1a)

R = CH3, Y = Cl

2a)

R = CH3, Y = Cl

1b)

R = CH3, Y = DMP

2b)

R = CH3, Y = DMP

1c)

R = n-C4H9, Y = Cl

2c)

R = n-C4H9, Y = Cl

1d)

R = n-C4H9, Y = DMP

2d)

R = n-C4H9, Y = DMP

1e)

R = n-C8H17, Y = Cl

2e)

R = n-C8H17, Y = Cl

1f)

R = n-C8H17, Y = DMP

2f)

R = n-C8H17, Y = DMP