Enantioselective, intermolecular benzylic C-H amination catalysed by an engineered iron-haem enzyme.
Enantioselective, intermolecular benzylic C-H amination catalysed by an engineered iron-haem enzyme.
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DOI:
10.1038/nchem.2783
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发表时间:
2017-07
期刊:
影响因子:
21.8
通讯作者:
Arnold FH
中科院分区:
文献类型:
--
作者:
Prier CK;Zhang RK;Buller AR;Brinkmann-Chen S;Arnold FH
C–H bonds are ubiquitous structural units of organic molecules; while these bonds are generally considered to be chemically inert, the recent emergence of methods for C–H functionalization promises to transform the way synthetic chemistry is performed. The intermolecular amination of C–H bonds represents a particularly desirable and challenging transformation for which no efficient, highly selective, and renewable catalysts exist. Here we report the directed evolution of an iron-containing enzymatic catalyst, based on a cytochrome P450 monooxygenase, for the highly enantioselective, intermolecular amination of benzylic C–H bonds. The biocatalyst is capable of up to 1,300 turnovers, exhibits excellent enantioselectivities, and provides access to valuable benzylic amines. Iron complexes are generally poor catalysts for C–H amination: in this catalyst, the enzyme’s protein framework confers activity on an otherwise unreactive iron-heme cofactor. The intermolecular amination of C–H bonds is an enabling transformation for the synthesis of nitrogen-containing molecules, yet a challenging activity for chemical catalysts. Here we engineer an iron-based enzyme for this reaction, demonstrating that a protein can confer a difficult new function upon an otherwise unreactive base metal.
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DOI:
10.1002/anie.201601056
发表时间:
2016-04-04
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Prier CK;Hyster TK;Farwell CC;Huang A;Arnold FH
通讯作者:
Arnold FH
影响因子:
16.6
作者:
Both, Peter;Busch, Hanna;Flitsch, Sabine L.
通讯作者:
Flitsch, Sabine L.
影响因子:
11.9
作者:
Podust LM;Sherman DH
通讯作者:
Sherman DH
影响因子:
15
作者:
Dydio, Pawel;Key, Hanna M.;Hartwig, John F.
通讯作者:
Hartwig, John F.
影响因子:
1.8
作者:
Nageli, I;Baud, C;Muller, P
通讯作者:
Muller, P