Chiral (acyclic diaminocarbene)gold(I)-catalyzed dynamic kinetic asymmetric transformation of propargyl esters.

Chiral (acyclic diaminocarbene)gold(I)-catalyzed dynamic kinetic asymmetric transformation of propargyl esters.
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DOI:
10.1021/ja205068j
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发表时间:
2011-08-24
影响因子:
15
通讯作者:
Toste, F. Dean
Toste, F. Dean
中科院分区:
化学1区
文献类型:
--
作者:
Wang, Yi-Ming;Kuzniewski, Christian N.;Rauniyar, Vivek;Hoong, Christina;Toste, F. Dean

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A highly enantioselective transformation catalyzed by chiral (acyclic diaminocarbene)gold(I) complexes is reported. The enantioselective synthesis of 2-substituted chromenyl pivalates from racemic phenol-substituted propargyl pivalates was developed. Rearrangement of the substrates in the presence of cationic gold gave allene intermediates, whose cyclization resulted in formation of enantioenriched product through a dynamic kinetic asymmetric transformation.
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