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Ketones amines, prim

Acetic acid formaldehyde-hydrogen chloride Ketones from prim, amines... [Pg.361]

Isocyclic ketones from prim, amines s. 44, 147 CHNH2 CO... [Pg.54]

Bei der Reduktion von Aldehyden und Ketonen werden neben den Alkoholen auch Di- und Polysulfane er-halten (s. S. 276), mit aromatischen Nitrilen im UberschuB5, mit Oxiranen (S. 422) und mit Thiiranen (S. 449) werden Thioamide, Dihydroxy-disulfane oder Polysulfane gebildet. Mit Thiolen entstehen Borsaure-trithioester, die mit Aldehyden und Ketonen Thioacetale ergeben6. Prim. Nitro-alkane Iiefern Nitrile, sek. Ketone und Oxime (S. 472), Nitro-aromaten die entspreehenden Amine (S. 478). Oxime konnen selektiv zu Hydroxylaminen Oder weiter zu Aminen reduziert werden (S. 375). [Pg.22]

Prim, und sek. aliphatische Amine lassen sich mit Carbonsauren und Natriumboranat reduktivzu tert. Aminen alkylieren3,4. Die Reduktion wird zweckmaBig bei 50-55°mit Natriumboranat in Tablettenform unter Stickstoff durchgefiihrt. Als Verdiinnungsmittel konnen Tetrahydrofuran oder Bis-[2-methoxy-athyl]-ather verwendet werden. Sekun-dare Amine lassen sich bei niedrigeren Temperaturen in der Gegenwart der entsprechen-den Ketone herstellen3 5 z. B. ... [Pg.358]

Tab. 85 Prim. Amine durch hydrierende Aminierung aliphatischer Ketone mit Ammoniak... [Pg.432]

Prim, amines from ketones under low pressure CO —y CHNHi s. 4,405... [Pg.376]

Lactams from cyclic amines. A mixture of iodosobenzene and water stirred for 15 min, the slurry cooled to 0°, treated in one portion with pyrrolidine, stirred at 9" for 1 h, then at room temp, until a clear soln. was obtained (4-5 h) - 2-pyrrolidinone. Y 49%. F.e. inch 3,4-dihydroisocarbostyrils and 2-piperidones, also nitriles from prim, amines, and cyclic ketones from cycloalkylamines, s. R.M. Moriarty et al., Tetrahedron Letters 29, 6913-6 (1988) cyclic azomethines in methylene chloride cf. ibid. 6917-20. [Pg.331]

Sec. from prim, amines and oxo compounds. N-Phenyl - p - phenylenediamine and methyl isobutyl ketone heated 4.5... [Pg.402]

The importance of nitroalkanes as building blocks and precursors of prim-amines and ketones is exemplified. [Pg.21]

Ammonium formate Prim, amines from ketones... [Pg.400]

Silver carbonate-on-Gelite has been recommended for the oxidation of alcohols to aldehydes and ketones. It does not attack hindered hydroxyl groups Prim, amines can be converted to ketones under mild conditions through prototropic isomerization of certain Schiff bases A variety of aldehydes, including deu-terio-, a, -ethylene-, and cycloalkane-aldehydes have been obtained in a novel manner from dihydro-1,3-oxazines Non-con-... [Pg.10]

Mesityl oxide refluxed 16 hrs. in water with a precipitated Ni-catalyst prepared from NiGl2 and Zn-dust in water isobutyl methyl ketone. Y 95%. - These convenient reductions do not require hydrogen. F. e., e.g. prim, amines from nitriles, s. K. Sakai and K. Watanabe, Bull. Chem. Soc. Japan W, 1548 (1967). [Pg.340]


See other pages where Ketones amines, prim is mentioned: [Pg.61]    [Pg.68]    [Pg.267]    [Pg.347]    [Pg.361]    [Pg.430]    [Pg.199]    [Pg.20]    [Pg.308]    [Pg.147]    [Pg.147]    [Pg.244]    [Pg.9]    [Pg.436]    [Pg.501]    [Pg.114]    [Pg.380]   
See also in sourсe #XX -- [ Pg.24 , Pg.203 ]




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