Chiral Brønsted acid-catalyzed allylboration of aldehydes.
Chiral Brønsted acid-catalyzed allylboration of aldehydes.
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DOI:
10.1021/ja104956s
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发表时间:
2010-09-01
影响因子:
15
通讯作者:
Antilla, Jon C.
中科院分区:
文献类型:
--
作者:
Jain, Pankaj;Antilla, Jon C.
The catalytic enantioselective allylation of aldehydes is a long-standing problem with considerable interest to the chemical community. We wish to disclose a new high yielding and highly enantioselective chiral Brønsted acid-catalyzed allylboration of aldehydes. The reaction is shown to be highly general, with broad substrate scope that covers aryl, heteroaryl, α,β-unsaturated, and aliphatic aldehydes. The reaction conditions were also shown to be effective for the catalytic enantioselective crotylation of aldehydes. We believe that the high reactivity of the allyl boronate is due to protonation of the boronate oxygen by the chiral phosphoric acid catalyst.
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