syn-β-Hydroxyallylic Silanes from Terminal Epoxide α-Lithiation–Silylation and Alkenylation: Application to the Tetrahydrofuran Portion of the Lytophilippines
摘要:
Lithiation-in situ silylation of terminal epoxides using lithium 2,2,6,6-tetramethylpiperidide in combination with phenyldimethyl(or diethyl)silyl chloride provides a direct process for the synthesis of trans-alpha,beta-epoxysilanes, which undergo alpha-ring opening with alkenylcoppers to give syn-beta-hydroxyallylic silanes. The chemistry is applied in an annulation approach to the C-10-C-19 tetrahydrofuran-containing portion of the lytophilippines.
syn-β-Hydroxyallylic Silanes from Terminal Epoxide α-Lithiation–Silylation and Alkenylation: Application to the Tetrahydrofuran Portion of the Lytophilippines
摘要:
Lithiation-in situ silylation of terminal epoxides using lithium 2,2,6,6-tetramethylpiperidide in combination with phenyldimethyl(or diethyl)silyl chloride provides a direct process for the synthesis of trans-alpha,beta-epoxysilanes, which undergo alpha-ring opening with alkenylcoppers to give syn-beta-hydroxyallylic silanes. The chemistry is applied in an annulation approach to the C-10-C-19 tetrahydrofuran-containing portion of the lytophilippines.
<i>syn</i>-β-Hydroxyallylic Silanes from Terminal Epoxide α-Lithiation–Silylation and Alkenylation: Application to the Tetrahydrofuran Portion of the Lytophilippines
作者:David M. Hodgson、Saifullah Salik
DOI:10.1021/ol3018853
日期:2012.9.7
Lithiation-in situ silylation of terminal epoxides using lithium 2,2,6,6-tetramethylpiperidide in combination with phenyldimethyl(or diethyl)silyl chloride provides a direct process for the synthesis of trans-alpha,beta-epoxysilanes, which undergo alpha-ring opening with alkenylcoppers to give syn-beta-hydroxyallylic silanes. The chemistry is applied in an annulation approach to the C-10-C-19 tetrahydrofuran-containing portion of the lytophilippines.