The ozonolysis of alkenes and alkynes belongs to a class of reactions known asoxidative cleavage.Some other reactions in this family include the cleavage of vicinal diols by NaIO4or Pb(OAc)4, as well as the cleavage of alkenes with hot, acidic potassium permanganate (KMnO4). Make sure you ...
Unless otherwise indicated, all numbers expressing quantities of ingredients, properties such as molecular weight, reaction conditions, and so forth used in the specification and claims are to be understood as being modified in all instances by the term “about.” Accordingly, unless indicated to the...
Potassium permanganate (KMnO4) is a very strong oxidant able to react with many functional groups, such as secondary alcohols, 1,2-diols, aldehydes, alkenes, oximes, sulfides and thiols. 高锰酸钾(KMnO4)是一种非常强的氧化剂,可与许多官能团发生反应,如二级醇,1,2-二醇、醛、烯烃、肟、硫化物...
In a reaction sometimes known as the “Simmons-Smith reaction”, diiodomethane (CH2I2) and zinc-copper couple (“Zn-Cu’) form a “carbene” (actually, acarbenoidto be more precise). Alkenes add to this species to give cyclopropanes. The stereochemistry of the addition issyn. Here is t...
or a -COOM group if the reaction is carried out in the presence of an alkali metal base; (g) conversion of an acid obtained by process (d) or (f) to its silver salt and treatment of this with chlorine, bromine or iodine to replace -COOAg by the said halogen; (h) pyrolysis of ...
Keywords: asymmetric catalysis; nitroalkene; Diels-Alder reaction; helical chirality 1. Introduction Asymmetric LUMO-lowering catalysis of the Diels-Alder reaction is one of the most extensively studied methods, and its current state is certainly impressive [1–7]. However, dienophiles are limited ...
reactionEssential oil allylbenzenes from have been converted quickly and efficiently into the corresponding benzaldehydes in good yields by a two-step "green" reaction pathway based on a solventless alkene group isomerization by KF/Al2O3 to form the corresponding 1-arylpropene and a subsequent ...