Formation and structure of a spiro dimer from methyl 2, 3-bis (chloromethyl) thiophene-5-carboxylate by treatment with sodium iodide in DMF solution

M Takeshita, M Koike, S Mataka…

Index: Takeshita, Michinori; Koike, Masanori; Mataka, Shuntaro; Tashiro, Masashi Journal of Organic Chemistry, 1991 , vol. 56, # 24 p. 6948 - 6950

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Citation Number: 9

Abstract

6948 J. Org. Chem. 1991, 56, 6948-6950 after 14 mos neat at ambient temperature afforded an unspecified yield of an impure amino diazo compound corresponding tq 10, along with a small amount of a 2: l adduct. None of the triazoline was found. Thus, azide-electron- deficient olefin dipolar cycloadditions, like many other pericyclic reactions,-are significantly accelerated by pressure. In view of the increasing availability of preparative high-pressure ...