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'Aminolysis' in keywords
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1Author    H. H. Baalmann, R. Keizer, J. C. Van De Grampel, C. KrukRequires cookie*
 Title    Derivatives of eis-NPC12(NS0C1)2 and (NPC12)2NS0C1, Part IX [1] Substitution Reactions of eis-NPC12(NS0C1)2 with Piperidine  
 Abstract    Aminolysis of cis-NPCl2(NSOCl)2 by piperidine in acetonitrile at room temperature proceeds via a non-geminal substitution pattern. During the first substitution step the reactivity of a SOCl-centre appears to be greater than that of a PCl2-centre. The second and third substitution step successively take place at the PC12-and remaining SOCl-centre. The different isomeric forms of the mono-, bis-, tris-, and tetrakis(piperidino) derivatives are characterized by means of 31 P NMR data. Application of 13 C NMR leads in two cases to a structure assignment. 
  Reference    Z. Naturforsch. 33b, 959—963 (1978); received June 26 1978 
  Published    1978 
  Keywords    Aminolysis, Reaction Pattern, Structure Assignment 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0959.pdf 
 Identifier    ZNB-1978-33b-0959 
 Volume    33 
2Author    M. Iv E, A.F M, F. D.Requires cookie*
 Title    Thiol Ester Aminolysis in Acetonitrile  
 Abstract    The kinetics of the reactions of p-nitro -phenyl thiolacetate with several amines in acetonitrile was studied. Hydrazine exhibits considerably greater nucleophilicity than expected from its pKa value. Common mech­ anism is suggested for the aminolysis of the thiol ester and its oxygen analogue. 
  Reference    (Z. Naturforsch. 30b, 138 [1975]; received September 30 1974) 
  Published    1975 
  Keywords    Thiol Ester, Aminolysis, Kinetics, Mechanism, Alpha Effect 
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 TEI-XML for    default:Reihe_B/30/ZNB-1975-30b-0138_n.pdf 
 Identifier    ZNB-1975-30b-0138_n 
 Volume    30 
3Author    DerekP N Satchell, RosemaryS. SatchellRequires cookie*
 Title    Identification o f a Baker-type M echanism in Additions to p-N itrophenyl Isothiocyanate in Diethyl Ether Solution  
 Abstract    Kinetic evidence is presented which strongly sug­ gests that in the diethyl ether solution the aminolysis of /7-nitrophenyl isothiocyanate proceeds via a mechanism involving a 1:1-addition interm ediate which undergoes catalyzed prototropic rearrange­ ment to the product (Baker-type mechanism). 
  Reference    Z. Naturforsch. 44b, 1329—1330 (1989); received June 1 1989 
  Published    1989 
  Keywords    Isothiocyanates, Aminolysis, Kinetics, B aker-type Mechanism 
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 TEI-XML for    default:Reihe_B/44/ZNB-1989-44b-1329_n.pdf 
 Identifier    ZNB-1989-44b-1329_n 
 Volume    44 
4Author    Z. NaturforschRequires cookie*
 Title    Aminolyse von Cp2ZrCl{P(SiMe3)2} -Synthese und Molekülstruktur von Cp2ZrCl(NHPh)  
 Abstract    The reaction of Cp2ZrCl{P(SiM e3)2} with aniline yields the terminal zirconocene phenyl­ amido com plex Cp2Z rCl(N H Ph) (1) and H P(SiM e3)2. 1 was characterized spectroscopically (n.m.r., i.r.) and by X-ray structure determination (monoclinic space group P 2 {ln, a -6.589(2), b = 19.978(3), c = 13.512(2) Ä , ß = 101.09(2)° (at 200 K)). The NHPh group is planar with Z r -N 2.116(10) A. 
  Reference    Z. Naturforsch. 50b, 1359—1361 (1995); eingegangen am 24. Februar 1995 
  Published    1995 
  Keywords    Aminolysis, Zirconocene Phosphido Complex Zirconocene Phenylamido Complex, Crystal Structure 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-1359.pdf 
 Identifier    ZNB-1995-50b-1359 
 Volume    50 
5Author    Volker Böhmer, Klaus WörsdörferRequires cookie*
 Title    Nachbargruppeneffekte bei der Aminolyse von Estern, III Der verlangsamende Einfluß von Triethylamin bei der Aminolyse von 2 -( 2 -Hydroxy benzyl )pheny lacetaten Neighboring Group Effects in the Amino lysis of Esters, III The Rate Diminishing Influence of Triethylamine in the Aminolysis of 2-(2-Hydroxybenzyl)phenylacetates  
 Abstract    The rate of the aminolysis of 2-(2-hydroxybenzyl)phenylacetates with n-butylamine in dioxane is diminished by the addition of triethylamine. This can be quantitatively described by the competitive formation of complexes between monoacetate and n-butyl-amine or triethylamine, if the assumption is made, that the complex with triethylamine is aminolysed slowly or not at all. The neighboring group effect in aminolysis cannot be explained therefore by a base catalysed decomposition of the tetrahedral intermediate. 
  Reference    Z. Naturforsch. 34b, 720—727 (1979); eingegangen am 6. April/23. November 1978/17. Januar 1979 
  Published    1979 
  Keywords    Kinetics, Aminolysis, Neighboring Group Effects, 2-(2-Hydroxybenzyl)phenylacetates, Triethylamine 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-0720.pdf 
 Identifier    ZNB-1979-34b-0720 
 Volume    34 
6Author    Volker Böhmer, Klaus WörsdörferRequires cookie*
 Title    Nachbargruppeneffekte bei der Aminolyse von Estern, II Die Aminolyse von 2-(2-Hydroxybenzyl)phenylacetaten Neighboring Group Effects in the Aminolysis of Esters, II The Aminolysis of 2-(2-Hydroxybenzyl)phenylacetates  
 Abstract    The aminolysis of 2-(2-hydroxybenzyl)phenyl acetates with w-butylamine in dioxane is much faster than for the corresponding 2-(2-methoxybenzyl)phenyl acetates or 2-methyl-phenyl acetates. The kinetic results can be explained by two equivalent mechanisms. Both of them include the formation of a l:l-complex between 2-(2-hydroxybenzyl)phenyl acetate and n-butylamine which is formed in an equilibrium. The reaction of this complex according to a second order rate law seems to be more probable than the reaction of the free ester according to a third order rate law. 
  Reference    Z. Naturforsch. 33b, 439—449 (1978); eingegangen am 30. Dezember 1977 
  Published    1978 
  Keywords    Kinetics, Aminolysis, Aprotic Solvent, Neighboring Group Effects, 2 -(2 -Hy droxybenzy 1 )phenylacetates 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0439.pdf 
 Identifier    ZNB-1978-33b-0439 
 Volume    33