Chemistry of Polyhalogenated
Nitrobutadienes, Part 7: A Novel Synthetic Access to Chlorinated
Nitrile Oxides
作者:Dieter Kaufmann、Eva Nutz、Viktor Zapol’skii
DOI:10.1055/s-0029-1216906
日期:——
Reaction of gem-dichloronitroalkenes with base leads to the formation of chlorinated nitrile oxides, probably via a cyclic intermediate. The 1,3-dipoles can be trapped with alkenes to give dihydroisoxazoles with a chlorinated side chain in 3-position. This novel synthetic method is fairly general.
Chemistry of polyhalogenated nitrobutadienes, 8: Nitropolychlorobutadienes—Precursors for insecticidal neonicotinoids
作者:Viktor A. Zapol’skii、Reiner Fischer、Jan C. Namyslo、Dieter E. Kaufmann
DOI:10.1016/j.bmc.2009.01.001
日期:2009.6
Nitropolychlorobutadienes are valuable precursors for highly functionalized acyclic or (hetero) cyclic compounds. In this 8th part of our synthetically oriented series we focus on the application of these versatile starting materials in the synthesis of analogs of the heterocyclic insecticides imidacloprid(TM) and thiacloprid(TM), and the acyclic counterpart clothianidin(TM). In addition to the main synthetic part, leading to imidazolidines or oxazolidines, further promising types of compounds derived by subsequent chemical modi. cations, are introduced. Most of the new compounds show high insecticidal activity. (C) 2009 Elsevier Ltd. All rights reserved.
Zapol'skii, V. A.; Potkin, V. I.; Nechai, N. I., Russian Journal of Organic Chemistry, 1993, vol. 29, # 5.1, p. 731 - 734
作者:Zapol'skii, V. A.、Potkin, V. I.、Nechai, N. I.、Kaberdin, R. V.
DOI:——
日期:——
Potkin, V. I.; Zapol'skii, V. A.; Kaberdin, R. V., Russian Journal of Organic Chemistry, 1993, vol. 29, # 5.1, p. 727 - 730
作者:Potkin, V. I.、Zapol'skii, V. A.、Kaberdin, R. V.