133387-34-5Relevant articles and documents
Continuous Synthesis and Purification by Coupling a Multistep Flow Reaction with Centrifugal Partition Chromatography
?rkényi, Róbert,éles, János,Faigl, Ferenc,Vincze, Péter,Prechl, Anita,Szakács, Zoltán,Kóti, János,Greiner, István
supporting information, p. 8742 - 8745 (2017/07/17)
Continuous-flow multistep synthesis is combined with quasi-continuous final-product purification to produce pure products from crude reaction mixtures. In the nucleophilic aromatic substitution of 2,4-difluoronitrobenzene with morpholine followed by a het
Continuous synthesis and purification by direct coupling of a flow reactor with simulated moving-bed chromatography
O'Brien, Alexander G.,Horvath, Zoltan,Levesque, Francois,Lee, Ju Weon,Seidel-Morgenstern, Andreas,Seeberger, Peter H.
supporting information; experimental part, p. 7028 - 7030 (2012/10/08)
Continuous synthesis meets continuous purification to produce pure products from crude reaction mixtures. In the nucleophilic aromatic substitution of 2,4-difluoronitrobenzene with morpholine the desired monosubstituted product can be continuously separated from the byproducts in a purity of over 99 % by coupling a flow reactor to a simulated moving bed (SMB) chromatography module (see scheme). Copyright
Regular trends in nucleophilic substitutions in 2-alkylamino-4- chloronitrobenzenes
Zotova,Kushakova,Kuznetsov,Rodin,Garabadzhiu
, p. 214 - 217 (2007/10/03)
The effect of substituents in position 2 on the reactivity of 2-alkylamino-4-chloronitrobenzenes in nucleophilic substitution by N-nucleophiles of various character was studied. 2005 Pleiades Publishing, Inc.
Aromatic Nucleophilic Substitution of Halobenzenes with Amines under High Pressure
Ibata, Toshikazu,Isogami, Yasushi,Toyoda, Jiro
, p. 42 - 49 (2007/10/02)
The nucleophilic substitution reactions of aromatic halides having electron-attracting groups on ortho or para position with various primary and secondary amines were accelerated by high pressure to give the corresponding N-substituted anilines in high yields.The bulkiness of amines affects its reactivity to lower the yields of the products.Although the secondary amines are usually less reactive than primary amines, cyclic secondary amines such as morpholine, piperidine, and pyrrolidine were found very reactive. 1,4-Diazabicyclooctane and quinuclidine gave N-quarternary ammonium halides in high yields in contrast to the low reactivity of acyclic tertiary amines.Dichloro- and trichloro-nitrobenzenes also react with diethylamine, pyrrolidine, and morpholine to give mono-, di-, and trisubstitution products depending upon the amount of amine and the position of nitro group in these chlorides.