New systems for classical nitrosohalogenation of alkenes - 1. Reactions of alkenes with ethyl nitrite in the presence of phosphorus halides and thionyl chlorideстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Studies of nitrosation of norbornene and norbornadiene derivatives and dimethyl tricyclo[4.2.2.0(2.5)]deca-3,7-diene-9,10-cis-endo-dicarboxylate demonstrated that nitrosation of alkenes with EtONO-PHal(3), EtONO-POHal(3) (Hal = Cl or Br), and EtONO-SOCl2 systems can afford nitroso halides in high yields without the formation of by-products (ketones and oximes). The reactions with 5-substituted norbornenes are nonregioselective. The trans dimer of endo-5-trifluoromethyl-cis-cxo-2-chloro-3-nitrosobicyclo[2.2.1]heptane was studied by X-ray diffraction.