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Regioselective Synthesis of 3- and 5-Functional Derivatives of Pyrazolidine. 1. Synthesis of Ketones of the Pyrazolidine Series |
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| Authors: | L. A. Sviridova A. N. Tavtorkin P. B. Terentiev I. F. Lescheva N. G. Kolotyrkina K. A. Kochetkov |
| Affiliation: | (1) M. V. Lomonosov Moscow State University, Moscow, 119992, Russia;(2) A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, 119991, Russia;(3) N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, 119991, Russia |
| Abstract: | When 5-hydroxypyrazolidines reacted with ketones on the surface of basic adsorbents the 3-regioisomers were obtained in addition to the expected 5-oxoalkylpyrazolidines. The conditions for the regiodirection of the process have been found. __________ Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, 1566–1572, October, 2005. |
| Keywords: | ketones 3- and 5-oxoalkylpyrazolidines diastereoselectivity isomerization mass spectroscopic analysis of isomers reactions on the surface of adsorbents |
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