First Synthesis of a New Class of Spiro-boracarbocycles by Cp2TiCl2-Catalyzed Cycloboration of Methylidene­cycloalkanes with PhBCl2

Cycloboration of methylidenecycloalkanes with PhBCl 2 in the presence of Cp 2 TiCl 2 as catalyst was performed for the first time to afford previously unknown spiro-boracarbocycles in 70–80% yields. The structure and properties of the obtained spiro-boriranes were studied by 11 B, 1 H, and 13 C NMR...

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Bibliographic Details
Published in:Russian journal of organic chemistry 2022-12, Vol.58 (12), p.1902-1908
Main Authors: Tulyabaeva, L. I., Salakhutdinov, R. R., Tyumkina, T. V., Tulyabaev, A. R., Dzhemilev, U. M.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
NMR
Nuclear magnetic resonance
Organic Chemistry
Room temperature
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Summary:Cycloboration of methylidenecycloalkanes with PhBCl 2 in the presence of Cp 2 TiCl 2 as catalyst was performed for the first time to afford previously unknown spiro-boracarbocycles in 70–80% yields. The structure and properties of the obtained spiro-boriranes were studied by 11 B, 1 H, and 13 C NMR and DOSY experi­ments. 1-Phenyl-substituted boraspiranes were found to be stable in solution at room temperature for 24 h.
ISSN:1070-4280
1608-3393
DOI:10.1134/S107042802212020X