Abstract
A number of new alkoxy- and phenylsulfanyl-substituted 1,1-dihalospiro[2.2]pentanes bearing different halogen atoms were synthesized. 1,1-Dihalo-4-tert-butoxyspiro[2.2]pentanes reacted with methyllithium at −55 to −10°C to give exclusively 1-tert-butoxy-2-vinylidenecyclopropane. The reaction of 1-bromo-1-fluoro-4-phenylsulfanylspiro[2,2]pentane with methyllithium resulted in replacement of the fluorine atom by methyl group.
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Original Russian Text © K.N. Sedenkova, E.B. Averina, I.S. Borisov, Yu.K. Grishin, V.B. Rybakov, T.S. Kuznetsova, N.S. Zefirov, 2012, published in Zhurnal Organicheskoi Khimii, 2012, Vol. 48, No. 10, pp. 1271–1277.
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Sedenkova, K.N., Averina, E.B., Borisov, I.S. et al. Synthesis of alkoxy- and phenylsulfanyl-substituted 1,1-dihalospiro[2.2]pentanes and their reactivity toward methyllithium. Russ J Org Chem 48, 1265–1271 (2012). https://doi.org/10.1134/S1070428012100016
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DOI: https://doi.org/10.1134/S1070428012100016