Title of article :
Regioselective cyclization of m-acylaryl 1,1-dimethylpropargyl ethers giving 5-acyl-2,2-dimethyl-2H-chromenes
Author/Authors :
Yamaguchi، نويسنده , , Seiji and Ishibashi، نويسنده , , Masaru and Akasaka، نويسنده , , Kazuya and Yokoyama، نويسنده , , Hajime and Miyazawa، نويسنده , , Masahiro and Hirai، نويسنده , , Yoshiro، نويسنده ,
Abstract :
Thermal cyclization of some m-acylaryl 1,1-dimethylpropargyl ethers (1a–f) effected regioselective orthocyclization giving the corresponding 5-acyl-2,2-dimethyl-2H-chromenes (2a–f)
