The reaction of keto-stabilized sulphonium and arsonium ylides with α-chlorooximes
作者:P. Bravo、G. Gaudiano、P.P. Ponti、C. Ticozzi
DOI:10.1016/s0040-4020(01)93832-3
日期:1972.1
The reaction of α-chlorooximes or the isomeric nitrosochlorides with keto-stabilized dimethylsulphonium or triphenylarsonium ylides affords trans-5-acyl-Δ2-isoxazolines (VIIa-m) in good yields. The NOCI adducts of ethylpropenyl ether and ethylstyryl ether on reaction with dimethylsulphonium phenacylide lead directly to the corresponding 3-substituted-5-benzoylisoxazo]es. Dimethylsulphonium carbethoxymethylide
Synthesis of chiral hexahydrophenazines by treatment of dimeric nitrosochlorides with 1,2-diaminoarenes
作者:Pavel A. Petukhov、Alexey V. Tkachev
DOI:10.1016/s0040-4020(97)00623-6
日期:1997.7
Treatment of dimeric nitrosochlorides derived from unsaturated hydrocarbons 1-methylcyclohexene, (+)-3-carene and limonene with 1,2-phenylenediamine results in the formation of hexahydrophenazine derivatives in good yields (48–66%). Treatment of cyclohexene nitrosochloride under the same reaction conditions leads to tetrahydrophenazine. Stereochemistry of the phenazine derivatives and possible reaction
Verfahren zur Abtrennung von Aminodiphenyl aus Diphenylamin
申请人:BAYER AG
公开号:EP0701996A1
公开(公告)日:1996-03-20
Aminodiphenyl (ADP) kann aus Diphenylamin (DPA) dadurch abgetrennt werden, daß man das zu reinigende DPA mit einem Stoff, in dem Sauerstoff mit einer Doppelbindung an ein C-Atom, ein N-Atom oder ein weiteres O-Atom gebunden ist, bei höherer Temperatur behandelt und dann das DPA vom behandelten Gemisch abtrennt.
氨基二苯基(ADP)可以从二苯胺(DPA)中分离出来,方法是在较高温度下,用一种氧与一个 C 原子、一个 N 原子或另一个 O 原子以双键结合的物质来处理待提纯的二苯胺,然后从处理过的混合物中分离出二苯胺。
α-Methylene-oximes from α-chloro-oximes and α-chloro-nitroso-compounds by dimethylsulphoxonium methylid