The reaction product of a dehydrohalogenated polyalkene and a maleic anhydride prepared by the method comprising halogenating polyalkene, dehydrohalogenating the resultant halogenated polyalkene and reacting the formed dehydrohalogenated polyalkene with maleic anhydride; the derivative of said reaction ...
This method obviates the need for stoichiometric reductant/oxidant mixtures thereby greatly simplifying the generation of Co–H. To demonstrate the generality of this shuttle HAT platform, five different reaction manifolds are shown, and the reaction can easily be scaled up to 100 mmol....
烯烃与卤素反应(Reaction of alkene with halogens) 烯烃可与氯气、溴溶液或有机溶剂中的碘快速发生反应,生成二卤代烷。 卤素原子围绕着双键添加。 在这种情况下,卤素分子起着亲电试剂的作用。 ■在任何情况下,溴(或其他卤素)分子可能会自发产生一个偶极矩:Brδ+-Brδ-(在后面的一个实例中,该偶极矩可被反转...
Influence of Halogen Substituents on the Catalytic Oxidation of 2,4,6-Halogenated Phenols by Fe(III)-Tetrakis(p-hydroxyphenyl) porphyrins and Potassium Mon... The influence of halogen substituents on the catalytic oxidation of 2,4,6-trihalogenated phenols (TrXPs) by iron(III)-porphyrin/KHSO5 ...
CONSTITUTION:An alkane (especially >=3C) is dehydrogenated in a liquid phase in the presence of a platinum group complex under boiling and reflux conditions (preferably 40-250 deg.C) to produce the objective alkene. As the platinum group complex, a Rh compound of the formula (X is halogen...
When 1-halogeno-3-alkene-2-ol is reacted with an ortho-carboxylic ester and/or a ketene acetal, a γ-halogeno-δ-unsaturated-carboxylic ester is obtained as a main reaction product. When this intermediate is treated with a basic substance, a substituted cyclopropane-carboxylic ester is ...
Write the mechanism and show intermediate and all possible products formation from the following alkene. Show Fischer projection for each product and find stereochemistry for each product. The reagent is a Br₂ Halogenation of Alkenes: Halogen of alkenes is an ...
An addition reaction takes place in various ways, such as hydration (adding water) or halogenation (adding a halogen). Another example is hydrohalogenation, which means an addition of hydrogen and halogen. Hydrohalogenation can take place in two ways; the simplest way is the ...
C-C-bond homolysis at room temperature generates in situ the corresponding Na-ketyl radical anions which react with various aryl iodides in a homolytic aromatic substitution reaction to form tertiary Na-alcoholates...关键词: alkenes alkenyl migration alkenylation perfluoroalkylation single-electron transfe...
or R1 and R2 forms a heterocyclic radical with the adjacent N-atom… R3 = halogen or lower alkyl… R4 = H, halogen, OH, lower alkyl or forms with the benzene ring a naphthyl radical… n = 2, 3, 4, 5, 6… Possess anti-oestrogenic activity and are useful in the treatment of an...