26600-49-7Relevant academic research and scientific papers
Facile one-step fabrication of DMAP-functionalized catalytic nanoreactors by polymerization-induced self-assembly in water
Chen, Tao,Huang, Jinjin,Min, Yuting,Qi, Dongming,Qiu, Jiaqi,Zhu, Xiaokang
, (2021/12/24)
Fabrication of highly efficient and recyclable micellar nanoreactors for green organic transformation via self-assembly of catalyst-containing amphiphilic copolymers in water has made great progress. These methods commonly include synthesis and functional
Classical Carbonium Ions. Part 13. Rearrangements from Secondary to Primary Alkyl Groups during Reactions involving Carbonium Ions
Cooper, Catherine N.,Jenner, Peter J.,Perry, Nigel B.,Russel-King, Jonquil,Storesund, Hans J.,Whiting, Mark C.
, p. 605 - 612 (2007/10/02)
The rearrangement of cyclohexylamine to cyclopentylmethyl derivatives, earlier reported in brief, is confirmed.A similar reaction with 4-trans-t-butylcyclohexylamine is shown to give trans-3-t-butylcyclopentylmethyl derivatives, defining the conformational requirements and stereochemical course of the rearrangement.In similar reactions 2-butylamine and 3-pentylamine give, in small yield, derivatives of primary alcohols.Cyclohexyl toluenesulphonate probably gives a very small yield of cyclopentylmethyl acetate.All these reactions involve the formation of products formally derived from carbonium ions much less stable than those initially generated, and yields, though small, are much larger than can be accounted for by classical descriptions.It is proposed that corner-protonated cyclopropanes ('non-classical carbonium ions') are 'intermediates' of very short lifetime in these reactions; the extent to which it is possible to regard species of very short lifetime as intermediates is discussed.
