Summary
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1.
From the corresponding α,ω-bis-1-boracycloalkylalkanes and boron trichloride 1-chloroborolane, 1-chloro-borinane, and 1-chloroborepane were synthesized.
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2.
When the compounds Cl2B(CH2)n BCr2, (n=4, 5, 6) are heated, cyclization occurs with the elimination of boron trichloride and the formation of the corresponding 1-chloroboracycloalkanes.
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3.
In the cyclization of Cr2B(CH2)3 BCr2 a four-membered ring is not formed, but 1,5-dichloro-1,5-diborocane is obtained.
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4.
Under the action of boron trichloride in presence of a tetraalkyldiborane α,ω-bis-l-boracycloalkylalkanes are converetd smoothly into the corresponding α,ω-bisdichloroborylalkanes.
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L. L Zakharkin and A. I. Kovredov, Izv. AN SSSR, Otd. khim. n. 1962, 2247.
L. I. Zakharkin and A. I. Kovredov, Zh. obshch. khimii 32, 1421 (1962); Izv. AN SSSR. Otd. khim. n. 1962, 357, 362, 1564.
B. M. Mikhailov, A. A. Akhnazaryan, and L. S. Vasil'ev, Dokl. AN SSSR 136, 828 (1961).
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This article is published in accordance with a resolution of the Conference of Chief Editors of Journals of the Academy of Sciences of the USSR, July 12, 1962, as a dissertation paper by A. I. Kovredov.
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Kovredov, A.I., Zakharkin, L.I. Synthesis of 1-chloroboracycloalkanes. Russ Chem Bull 13, 42–45 (1964). https://doi.org/10.1007/BF01179564
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DOI: https://doi.org/10.1007/BF01179564