. 2020 Jan 28;10(5):1343–1355. doi: 10.1039/c9cy02498k

Table 1. Comparison of ε_max, τ_60,S_3b and R_3b values (see text for definition) for methanol-d₄ solutions of 1a, 6 equivalents of sodium pyruvate-1,2-[¹³C₂] and 4 equivalents of the specified sulfoxide I–X of Fig. 3 after shaking with 3 bar p-H₂ for 10 seconds in a mu metal shield.

Sulfoxide	¹³C₁ε_max/fold ^a	¹³C₂ε_max/fold ^a	τ ₆₀/%	S _3b/arb. units	R _3b/%
I	1215 ± 40	910 ± 30	23	50	60
II	1090 ± 35	1035 ± 30	6	85	90
III	1090 ± 35	1040 ± 30	32	20	93
IV	115 ± 5	105 ± 5	92	5	N/A ^b
V	555 ± 15	545 ± 15	3	60	90
VI	195 ± 5	180 ± 5	3	5	70
VII	400 ± 10	385 ± 10	9	25	45
VIII	1150 ± 35	1040 ± 30	60	70	95
IX	0	0	N/A	N/A	0
X	130 ± 5	115 ± 5	17	N/A ^c	N/A ^c

^aThese reflect one shot measurements due to the change in signal over time. Errors are based on an average of three measurements for a sample containing II where the observed enhancement is relatively constant thereby allowing repeat measurement.

^bRapid sample degradation prevented recording R_3b at a similar time point to ε_max.

^cNo signals for a species analogous to 3b were evident.

Table 1. Comparison of εmax, τ60,S3b and R3b values (see text for definition) for methanol-d4 solutions of 1a, 6 equivalents of sodium pyruvate-1,2-[13C2] and 4 equivalents of the specified sulfoxide I–X of Fig. 3 after shaking with 3 bar p-H2 for 10 seconds in a mu metal shield.

Table 1. Comparison of ε_max, τ_60,S_3b and R_3b values (see text for definition) for methanol-d₄ solutions of 1a, 6 equivalents of sodium pyruvate-1,2-[¹³C₂] and 4 equivalents of the specified sulfoxide I–X of Fig. 3 after shaking with 3 bar p-H₂ for 10 seconds in a mu metal shield.