Regio‐ and Stereoselective Synthesis of (
<i>Z</i>
)‐
<scp>3‐Ylidenephthalides</scp>
<i>via</i>
<scp>
H
<sub>3</sub>
PMo
<sub>12</sub>
O
<sub>40</sub>
‐Catalyzed
</scp>
Cyclization of
<scp>2‐Acylbenzoic</scp>
Acids with Benzylic Alcohols
作者:Guoping Yang、Ke Li、Xiaoling Lin、Yijin Li、Chengxing Cui、Shixiong Li、Yuanyuan Cheng、Yufeng Liu
DOI:10.1002/cjoc.202100397
日期:2021.11
We report an exclusively tandem C—O and C—C bond forming beyond the esterification and cyclization reaction of 2-acylbenzoic acids with alcohols to regio- and stereoselective synthesis of the (Z)-3-ylidenephthalides. The reaction uses the nontoxic, inexpensive H3PMo12O40 as catalyst and produces water as the sole by-product, making the reaction environmentally benign and sustainable. Moreover, this
我们报告了在 2-酰基苯甲酸与醇的酯化和环化反应以区域选择性和立体选择性合成 ( Z )-3-亚芳基苯酞之后形成的完全串联的 C-O 和 C-C 键。该反应使用无毒、廉价的 H 3 PMo 12 O 40作为催化剂,并产生水作为唯一的副产物,使该反应对环境无害且可持续。此外,该反应具有环境友好的反应条件,易于扩展,产品易于衍生为药物和生物活性化合物。机理研究和密度泛函理论计算表明,合适的酸催化剂是这种转化选择性的关键。