Synthesis of derivatives of 4,5-dihydrofuran,furan, and hexahydrobenzofuran from conjugated alkenynes |
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Authors: | G G Melikyan A B Sargsyan V S Giri R T Grigoryan Sh O Badanyan |
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Institution: | (1) Institute of Organic Chemistry, Academy of Sciences of the Armenian SSR, 375,094 Yerevan;(2) Indian Institute of Chemical Biology, Calcutta |
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Abstract: | The regiochemistry of the reaction of 1,2- and 1-substituted derivatives of 1-buten-3-yne and its 4- and 2,4-substituted derivatives of the isoprenoid type with acetoacetic ester and acetylacetone in the presence of the manganese(III) acetate-copper(II) acetate oxidative system was studied. Derivatives of 4,5-dihydrofuran, furan, and hexahydrobenzofuran were obtained.Communication 137 from the series Reactions of unsaturated compounds. See 1] for communication 136.Translated from Khimiya Geterotsiklicheskikh Soedinenii, Vol. 24, No. 3, pp. 317–323, March, 1988. |
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