(E,Z)-1,1,1,4,4,4-Hexafluorobut-2-enes: hydrofluoroolefins halogenation/dehydrohalogenation cascade to reach new fluorinated allene

• Nataliia V. Kirij,
• Andrey A. Filatov,
• Yurii L. Yagupolskii,
• Sheng Peng and
• Lee Sprague

Beilstein J. Org. Chem. 2024, 20, 452–459, doi:10.3762/bjoc.20.40

• significantly. One of the new and budding directions in recent years is the stereoselective olefin metathesis processes based on catalysis by complexes of molybdenum, tungsten and ruthenium [3][4][5]. The first publications have recently appeared that molybdenum complexes can catalyze cross-metathesis of butene

Aluminacyclopentanes in the synthesis of 3-substituted phospholanes and α,ω-bisphospholanes

• Vladimir A. D’yakonov,
• Alevtina L. Makhamatkhanova,
• Rina A. Agliullina,
• Leisan K. Dilmukhametova,
• Tat’yana V. Tyumkina and
• Usein M. Dzhemilev

Beilstein J. Org. Chem. 2016, 12, 406–412, doi:10.3762/bjoc.12.43

• with molybdenum hexacarbonyl. The structure of the complexes was proved by multinuclear 1H, 13C, and 31P spectroscopy. Keywords: aluminacyclopentanes; Dzhemilev reaction; molybdenum complexes; phospholanes; zirconium complexes; Introduction A widely used approach for the synthesis of cyclic

• molybdenum complexes. For example, 3-hexyl-1-phenylphospholane and 3-benzyl-1-methylphospholane react with Mo(CO)6 furnishing molybdenum complexes 13b and 14g (Scheme 7). The complex formation is evidenced by changes in the NMR spectral parameters of compounds 13b and 14g in relation to the initial

• and 10c react with Mo(CO)6 to form molybdenum complexes 15a and 16c (Scheme 8). The resulting molybdenum complexes are oily liquids. The structure of the complexes was also proved by spectral data. Conclusion Thus, as a continuation of investigations dealing with the search for effective methods for