发明申请
US20070276153A1 Diastereoselective Method of Preparing Olefins by Means of the Horner-Wadsworth-Emmons Reaction Using a Particular Phosphonate Which Improves Diastereoselectivity at all Temperatures Including at Ambient Temperature
审中-公开
通过Horner-Wadsworth-Emmons反应制备烯烃的非对映选择方法，使用特殊的膦酸酯改善包括在环境温度下的所有温度下的非对映体选择性
- 专利标题： Diastereoselective Method of Preparing Olefins by Means of the Horner-Wadsworth-Emmons Reaction Using a Particular Phosphonate Which Improves Diastereoselectivity at all Temperatures Including at Ambient Temperature
- 专利标题（中）： 通过Horner-Wadsworth-Emmons反应制备烯烃的非对映选择方法，使用特殊的膦酸酯改善包括在环境温度下的所有温度下的非对映体选择性
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申请号： US10578396申请日： 2004-11-04
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公开(公告)号： US20070276153A1公开(公告)日： 2007-11-29
- 发明人: François Touchard , Laurent Saint-Jalmes
- 申请人： François Touchard , Laurent Saint-Jalmes
- 申请人地址： GB HERTFORDSHIRE WD24 4QP, UNITED KINGDOM
- 专利权人： RHODIA UK LIMITED
- 当前专利权人： RHODIA UK LIMITED
- 当前专利权人地址： GB HERTFORDSHIRE WD24 4QP, UNITED KINGDOM
- 优先权： FR0312921 20031104
- 国际申请： PCT/FR04/02834 WO 20041104
- 主分类号： C07C67/313
- IPC分类号： C07C67/313
摘要：
The invention relates to a diastereoselective process for the preparation of olefins by the Horner-Wadsworth-Emmons reaction which consists in reacting a specific phosphonate improve the diastereoselectivity at all temperatures including at ambient temperature, with a carbonyl derivative in the presence of a base in an appropriate solvent.
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