Regioselective [3+2] Cycloaddition Reaction of 3-Alkynoates with Seyferth-Gilbert Reagent

Tian Yu-Ting; Zhang Fa-Guang; Ma Jun-An

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Regioselective [3+2] Cycloaddition Reaction of 3-Alkynoates with Seyferth-Gilbert Reagent

机译：具有Seyferth-Gilbert试剂的3-炔醇酸盐的区域选择性[3 + 2]环加成反应

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A Et3N-triggered regioselective [3 + 2] cyclo-addition reaction of 3-alkynoates with Seyferth-Gilbert reagent has been developed to furnish a series of trisubstituted pyrazole-3-phosphonates. A one-pot cycloaddition/alkylation sequence further offered access to the corresponding fully substituted pyrazoles.

机译：用Et3N引发的3-炔酸盐与Seyferth-Gilbert试剂的区域选择性[3+2]环加成反应合成了一系列三取代吡唑-3-膦酸酯。一锅环加成/烷基化序列进一步提供了获得相应的全取代吡唑的途径。

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《The Journal of Organic Chemistry》 |2021年第4期|共9页
作者
Tian Yu-Ting; Zhang Fa-Guang; Ma Jun-An;
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Tianjin Univ Minist Educ Frontiers Sci Ctr Synthet Biol Dept Chem Tianjin Key Lab Mol Optoelect Sci Tianjin 300072 Peoples R China;

Tianjin Univ Minist Educ Frontiers Sci Ctr Synthet Biol Dept Chem Tianjin Key Lab Mol Optoelect Sci Tianjin 300072 Peoples R China;

Tianjin Univ Minist Educ Frontiers Sci Ctr Synthet Biol Dept Chem Tianjin Key Lab Mol Optoelect Sci Tianjin 300072 Peoples R China;

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中图分类有机化学;
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Regioselective [3+2] Cycloaddition Reaction of 3-Alkynoates with Seyferth-Gilbert Reagent

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