Conclusions
-
1.
A study was made of the ionic hydrogenation of cyclopropane hydrocarbons, containing a double bond in the side chain.
-
2.
On the example of the ionic hydrogenation of the vinyl- and isopropenylcyclopropanes it was shown that the selective hydrogenation of a double bond, conjugated with a three-membered ring, is possible.
-
3.
In the ionic hydrogenation of alkylidenecyclopropane hydrocarbons, and specifically 1,1-dimethyl-2-methylenecyclopropane and 1,1-dimethyl-2-isopropylidenecyclopropane, the selective hydrogenation of the semicyclic double bond fails to occur and the hydrogenation, products are saturated hydrocarbons with an open chain, and specifically 2,3-dimethylbutane and 2,5-dimethylhexane.
-
4.
A reaction scheme was proposed for the ionic hydrogenation of 1,1-dimethyl-2-isopropylidenecyclopropane, which includes the intermediate formation of 2,5-dimethyl-2,4-hexadiene, which compound is capable of taking part in the ionic hydrogenation reaction, both by the 1,2- and by the 1,4-mechanism.
Similar content being viewed by others
Literature cited
Z. N. Parnes, G. A. Khotimskaya, and M. Yu. Lukina, Dokl. Akad. Nauk SSSR,178, 620 (1968).
D. N. Kursanov, Z. N. Parnes, and G. I. Bolestova, Dokl. Akad. Nauk SSSR,181 1132 (1968).
Contemporary Problems of Physical Organic Chemistry [in Russian], Mir, Moscow (1967), p. 410.
F. A. Carey and H. S. Tremper, J. Am. Chem. Soc.,91, 2967 (1969).
Z. N. Parnes, G. A. Khotimskaya, R. V. Kudryatsev, and M. Yu. Lukina, Dokl. Akad. Nauk SSSR,184, 615 (1969).
V. A. Slabey and P. H. Wise, J. Am. Chem. Soc.,71, 1518, 3252 (1949).
J. W. Jenkins, N. L. Lavery, P. R. Guenther, and H. W. Post, J. Org. Chem.,13, 862 (1948).
H. D. Hartzler, J. Am. Chem. Soc.,86, 526 (1964).
W. Rahman and H. G. Kuivila, J. Org. Chem.,31, 772 (1966).
G. Schroder, Chem. Ber.,96, 3178 (1963).
Author information
Authors and Affiliations
Additional information
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 901–905, April, 1972.
Rights and permissions
About this article
Cite this article
Parnes, Z.N., Khotimskaya, G.A., Kudryavtsev, R.V. et al. Ionic hydrogenation of alkenyl- and alkylidenecyclopropanes. Russ Chem Bull 21, 854–857 (1972). https://doi.org/10.1007/BF00854486
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00854486