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Industrial Biotransformations

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Oxygenase<br />

Escherichia coli<br />

OH<br />

OH<br />

1 2<br />

1 = 3-ethyl-catechol<br />

2 = 3-propyl-catechol<br />

3 = 3-isopropyl-catechol<br />

4 = 3-isobutyl-catechol<br />

5 = 3-chloro-catechol<br />

6 = 3-bromo-catechol<br />

Fig. 1.14.13.44 – 2<br />

3) Flow scheme<br />

Fig. 1.14.13.44 – 3<br />

OH<br />

OH<br />

4) Process parameters<br />

conversion: 97 %<br />

yield: 83 %<br />

selectivity: 85 %<br />

chemical purity: 77 %, 98 % after recrystallization<br />

reactor type: fed batch<br />

reactor volume: 300 L<br />

OH<br />

OH<br />

OH<br />

OH<br />

Cl<br />

OH<br />

OH<br />

3 4 5 6<br />

EC 1.14.13.44<br />

Br<br />

OH<br />

OH<br />

231

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