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The reaction of Grignard compounds with Schiff bases. II. The dimerization of Schiff bases in dependence on the substituents on the nitrogen and on the nature of the Grignard reagent

Thies, Heinrich ; Schönenberger, Helmut


cf. C.A. 51, 7319g. The reaction of PhCH:NR (I) with R'MgX (II) to form the dimer, (RNHCHPh)2 (III), rather than the adduct, PhCH(NHR)R' (IV), increases as the length of R and the branching of R' increase. I (0.2 mole) in 20 cc. dry Et2O added during 2 hrs. to 0.4 mole II in 100 cc. Et2O, the mixt. refluxed 4 hrs., decompd. with NaOH and ice, extd. with Et2O, fractionally distd., the distillate ...


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