详细信息

R(+)对羟基苯氧基丙酸炔丙酯的合成    

Synthesis of R(+)-2-(4-Hydroxyphenoxy)propionic Acid Propynyl Ester

文献类型:期刊文献

中文题名:R(+)对羟基苯氧基丙酸炔丙酯的合成

英文题名:Synthesis of R(+)-2-(4-Hydroxyphenoxy)propionic Acid Propynyl Ester

作者:雷子蕙[1];廖道华[1];曹伟锋[1]

机构:[1]华东理工大学制药工程系,上海200237

年份:2006

卷号:36

期号:2

起止页码:29

中文期刊名:精细化工中间体

外文期刊名:Fine Chemical Intermediates

收录:CSTPCD

语种:中文

中文关键词:除草剂;炔草酯;R(+)对羟基苯氧基丙酸炔丙酯;(S)-(-)乳酸甲酯

外文关键词:herbicide ; R (+)-clodinafop-propargyl; R (+)-2- (4-hydroxyphenoxy) propionic acid propynyl ester;S-methyl lactate

摘要:报道了合成超高效除草剂炔草酯的中间体R(+)对羟基苯氧基丙酸炔丙酯的方法。以(S)-(-)乳酸甲酯为原料,先与对甲苯磺酰氯反应制备S-对甲苯磺酰乳酸甲酯,再与对苯二酚和丙炔醇反应,制备R(+)对羟基苯氧基丙酸炔丙酯,总收率76%。旋光度为[α]2D5=+37.5。
R(+)-2-(4-hydroxyphenoxy) propionic acid propynyl ester is an important intermediates of herbicide R- clodinafop-propargyl. A new method for synthesizing R (+)-2-(4-hydroxyphenoxy) propionic acid propynyl ester is reported in the paper. The starting material S-methyl lactate was condensed with p-toluenesulfonyl chloride to give L- methyl p-toluenesulfonyl lactate, and L-methyl p-toluenesulfonyl lactate reacted with hydroquinone and propargyl alcohol to give the target product R (+)-2-(4-hydroxyphenoxy) propionic acid propynyl ester. The total yield and optical activity ([α]D^25) of the product is 76% and +37.5, respectively.

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