Direct Asymmetric Alkylation of Ketones: Still Unconquered.
Direct Asymmetric Alkylation of Ketones: Still Unconquered.
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DOI:
10.1002/anie.201703079
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发表时间:
2017-08-01
期刊:
影响因子:
--
通讯作者:
McGlacken GP
中科院分区:
文献类型:
--
作者:
Cano R;Zakarian A;McGlacken GP
The alkylation of ketones is taught at basic undergraduate level. In many cases this transformation leads to the formation of a new stereogenic center. However, the apparent simplicity of the transformation is belied by a number of problems. So much so, that a general method for the direct asymmetric alkylation of ketones remains an unmet target. Despite the advancement of organocatalysis and transition-metal catalysis, neither field has provided an adequate solution. Indeed, even use of an efficient and general stoichiometric chiral reagent has yet to be reported. Herein we describe the state-of- the-art in terms of direct alkylation reactions of some carbonyl groups. We outline the limited progress that has been made with ketones, and potential routes towards ultimately achieving a widely applicable methodology for the asymmetric alkylation of ketones.
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DOI:
10.1073/pnas.1206532109
发表时间:
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影响因子:
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