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Synthesis 1986; 1986(12): 1016-1017
DOI: 10.1055/s-1986-31854
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A Convenient Synthetic Method for β-Alkoxy- and β-Phenoxyacrylic Acids and 3,4-Dihydro-2H-pyran-5- and 2,3-Dihydrofuran-4-carboxylic Acids

Masaru Hojo* , Ryōichi Masuda, Syūhei Sakaguchi, Makoto Takagawa
  • *Department of Industrial Chemistry, Faculty of Engineering, Kobe University, Kobe, 657, Japan
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Publication Date:
12 September 2002 (online)

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trans-β-Trihaloacetylvinyl ethers 1 are easily hydrolyzed by wet potassium hydroxide in benzene, yielding the corresponding acids 2 in excellent yields. This synthetic method also can be applicable to cyclic vinyl ethers 3 and 5 to yield 4 and 6 in high yields.