Allenic Esters from Cyclopropenones by Lewis Base Catalysis: Substrate Scope, the Asymmetric Variant from the Dynamic Kinetic Asymmetric Transformation, and Mechanistic Studies
Allenic Esters from Cyclopropenones by Lewis Base Catalysis: Substrate Scope, the Asymmetric Variant from the Dynamic Kinetic Asymmetric Transformation, and Mechanistic Studies
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路易斯碱催化从环丙烯酮生成二烯二酸酯:底物范围、动态动力学不对称转化的不对称变体和机理研究
DOI:
10.1002/cctc.201500466
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发表时间:
2015-10
期刊:
影响因子:
4.5
通讯作者:
Shi Min
中科院分区:
文献类型:
--
作者:
Wei Yin;Zhao Wen-Tao;Yang Yuan-Liang;Zhang Zhen;Shi Min
The Lewis base catalyzed reactions of cyclopropenones with a variety of nucleophiles (alcohols, phenols, or water) were systematically investigated. We demonstrated that this kind of reaction could be used to synthesize allenic esters in moderate to excellent yields. Furthermore, more synthetically interesting axially chiral allenes in moderate to good yields and ee values were obtained in the corresponding asymmetric reaction in the presence of multifunctional chiral phosphine catalyst. The reaction mechanism was disclosed by using NMR tracing experiments, MS, and DFT calculations. Notably, the asymmetric reaction was proved to be a dynamic kinetic asymmetric transformation based on the control experiments, and the detailed mechanism of this transformation revealed by theoretical investigations.
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影响因子:
5.4
作者:
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通讯作者:
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影响因子:
3.2
作者:
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通讯作者:
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作者:
M. Ogasawara;A. Okada;K. Nakajima;Tamotsu Takahashi
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影响因子:
5.2
作者:
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通讯作者:
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DOI:
10.1002/chin.200427267
发表时间:
2004-04
期刊:
ChemInform
影响因子:
--
作者:
L. Brandsma;N. Nedolya
通讯作者:
L. Brandsma;N. Nedolya