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. 2019 May 8;58(24):8226–8230. doi: 10.1002/anie.201900926

Table 2.

Biocatalytic transformation of substrate 2 d by 2‐ODD‐PH. Inline graphic

Entry Scale Conv. 11 d [%] (+)‐2 d [%]
[%][a] Yield[b] ee [d] Yield[b] ee [c]
1 1 mg 50 [e] 99 [e] 99
2 100 mg 43 38 95 50 72
3 2.0 g 41 39 95 (>99[f]) 45 66

Reaction conditions: CFE (44 v %), 20 mm substrate, 2‐oxoglutarate (1.75 equiv), sodium ascorbate (3 equiv), 23 % DMSO as cosolvent, 18 h; the absolute configurations were determined by comparison to literature values.24 [a] The conversion was determined from calibrated HPLC‐UV spectra. [b] Yields of isolated, chromatographically pure, and fully characterized products are reported. [c] The ee values were determined by HPLC‐UV analysis on a chiral stationary phase (for details see the Supporting Information). [d] The ee value was determined from the conversion and the ee of the remaining substrate.25 [e] Yield of isolated product not determined. [f] The ee was determined by HPLC‐UV analysis of the follow‐up product 1 (see Scheme 2).