Stereoselective VO(acac)(2) Catalyzed Epoxidation of Acyclic Homoallylic Diols. Complementary Preparation of C2-syn-3,4-Epoxy Alcohols.
Stereoselective VO(acac)(2) Catalyzed Epoxidation of Acyclic Homoallylic Diols. Complementary Preparation of C2-syn-3,4-Epoxy Alcohols.
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DOI:
10.1016/j.tet.2010.11.079
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发表时间:
2011-02-04
期刊:
影响因子:
2.1
通讯作者:
Prieto JA
中科院分区:
文献类型:
--
作者:
Rodríguez-Berríos RR;Torres G;Prieto JA
A substrate-controlled stereoselective epoxidation of free and monoprotected homoallylic diols was developed. This second-generation approach is based on the incorporation of a primary hydroxy directing group at the C2 methyl carbon, which changes the nature of the vanadium ester intermediate providing a new diastereoselectivity manifold for the preparation of 3,4-epoxy alcohols. This modification favored the formation of the challenging C2-syn epoxy alcohol product not previously available using the standard homoallylic alcohol substrates. These new epoxy alcohol diastereomers expand the scope and generality for the utilization of 3,4-epoxy alcohols as precursors for stereoselective polypropionate synthesis.
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影响因子:
1.1
作者:
COXON, JM;HARTSHOR.MP;SWALLOW, WH
通讯作者:
SWALLOW, WH
影响因子:
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通讯作者:
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