Table 5.

Concentration effects on hydroxyl peak shifts in sulfoxide derivatives^a

Rc	N°d	Chemical Shift (ppm)				Integrated Area
		0.02M		0.04M		0.02M		0.04M
		Peak 1e	Peak 2	Peak 1	Peak 2	Peak 1	Peak 2	Peak 1	Peak 2
4	6	6.34	4.62	6.31	4.80	0.56	0.49	0.52	0.51
6	7	6.33	4.53	6.34	4.77	0.75	0.73	0.70	0.94
8	8	6.34	4.66	6.34	4.88	0.72	0.62	0.76	0.50
10	9	6.34	4.58	6.35	4.73	0.58	0.50	0.61	0.57

^a1H NMR experiments were conducted with four TFK-sulfoxides using a Varian Mercury 300 MHz NMR. All samples were prepared in CDCl₃ that had been stored over K₂CO₃(s). Each compound was measured at 0.019 M and 0.038 M.

^bRelative area units as determined from the ¹H NMR analysis.

^cR refers to the length of the alkyl chain as shown in Figure 1.

^dIndividual compound numbers.

^ePeak 1 and Peak 2 refer to the hydroxyl groups from the gem-diol as shown in Figure 5.