Abstract
Condensation of 3-chloro-1,2,3-trimethyl-4-methylidenecyclobutene with 1,2-dimethyl-3,4-dimethylidenecyclobutene under the action of MgBr2 leading to spiro compounds was observed. The scheme of the process is discussed.
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As far as we know, cation2 was not generated before under <long> life conditions.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 12, pp. 2955–2957, December, 1996.
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Osadchii, S.A., Kochubei, N.V., Shakirov, M.M. et al. Unexpected condensation of 3-chloro-1,2,3-trimethyl-4-methylidenecyclobutene with 1,2-dimethyl-3,4-dimethylidenecyclobutene. Russ Chem Bull 45, 2807–2809 (1996). https://doi.org/10.1007/BF01430647
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DOI: https://doi.org/10.1007/BF01430647