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. 2017 Nov 28;57(16):4143–4148. doi: 10.1002/anie.201708408

Figure 3.

Figure 3

Production of chiral organoboranes by E. coli expressing Rhodothermus marinus cytochrome c.11 The bacterial catalyst uses borane‐Lewis base complexes and diazo reagents to construct boron‐containing carbon stereocenters efficiently and selectively in cells by carbene B−H insertion. The bioconversion can be conducted readily on gram scale, and the enantio‐preference of borylation was switched to give either enantiomer of the organoborane products.