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Cyclization of 1-Aryl-5-Phenylpent-4-en-2-yn-1-Ones to 2,3-Dihydropyran-2-Ones in Trifluoromethanesulfonic Acid
Chemistry of Heterocyclic Compounds ( IF 1.4 ) Pub Date : 2020-08-21 , DOI: 10.1007/s10593-020-02756-8
Anna S. Zalivatskaya , Aleksander А. Golovanov , Aleksander V. Vasilyev

Under the action of an excess of trifluoromethanesulfonic acid, 1-aryl-5-phenylpent-4-en-2-yn-1-ones cyclize intramolecularly to 6-aryl-2-phenyl-2,3-dihydropyran-4-ones. The reaction proceeds at room temperature for 1 h with 50–60% yields.


中文翻译:

在三氟甲磺酸中将1-Aryl-5-Phenylpent-4-en-2-yn-1-Ones环合为2,3-二氢吡喃-2-Ones

在过量的三氟甲磺酸的作用下,1-芳基-5-苯基戊-4-en-2-yn-1-ones在分子内环化成6-芳基-2-苯基-2,3-二氢吡喃-4-ones。反应在室温下进行1小时,收率50-60%。
更新日期:2020-08-21
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