Conclusions
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1.
A study was made of the codimerization of 1,3-butadiene and ethylene using catalyst systems based on (C2H5)2TiCl2.
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2.
3-Methyl-1,3-pentadiene, with a 2∶3 ratio of the stereoisomers, is selectively formed in high yield on the (C5H5)2TiCL2-C2H5MgBr system.
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3.
The yield of 3-methyl-1,3-pentadiene decreases on the (C5H5)2TiCl2-Al(C2H5)3 system due to ethylene polymerization, in which connection the ratio of the isomers changes to 5∶4.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 167–169, January, 1977.
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Amerik, A.B., Vdovin, V.M. & Poletaev, V.A. Synthesis of 3-methyl-1,3-pentadiene by the codimerization of 1,3-butadiene with ethylene. Russ Chem Bull 26, 144–146 (1977). https://doi.org/10.1007/BF00921513
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DOI: https://doi.org/10.1007/BF00921513