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1998[X]
1Author    H. Möhrle, J. MehrensRequires cookie*
 Title    Reaktivität nitrophenylsubstituierter cyclischer Amine bei Dehydrierungen The Reactivity of Nitrophenyl Substituted Cyclic Amines with Dehydrogenations  
 Abstract    Piperidine and perhydroazepine bearing a 1 -(4-nitrophenyl) substituent were inert to mercury-edta, while the a-pipecoline derivative gave an aminoketone with cleavage of the heterocycle. However the corresponding (2-nitrophenyl) compounds reacted to give respectively a piperidin-2-one, an aminopentanal and an aminohexanone. By an additional substituent in 2'-position the p-nitro compounds underwent dehydrogenation too. With a methyl group resulted a pattern analogous to o-nitro products. A neighbouring hydroxymethyl function enhanced the reaction with formation of benzoxazines and if possible their further oxidized derivatives, the hydroxylactams. 
  Reference    (Z. Naturforsch. 53b, 37 [1998]; eingegangen am 8. Oktober 1997) 
  Published    1998 
  Keywords    Lactam, Iminium Salt, Aminoketone, N, 0-Acetal, Neighbour Group 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-0037.pdf 
 Identifier    ZNB-1998-53b-0037 
 Volume    53 
2Author    Andreas Böhm, Kurt Polborn, Karlheinz Sünkel, Wolfgang BeckRequires cookie*
 Title    Metallkomplexe mit biologisch wichtigen Liganden, CIV [1]. or/Zio-Palladierte Komplexe von N,N-DimethyI-C-phenyl-glycinmethylester. Synthese von a-Aminosäure-Derivaten durch Insertion von Isocyaniden, CO, Alkenen und Alkinen in die Pd-C-Bindung Metal Complexes of Biologically Important Ligands, CIV [ 1]. o/t/20-Palladated Complexes of N,N-Dimethyl-C-phenylglycine-methylester. Synthesis of ct-Amino Acid Derivatives by Insertion of Isocyanides, CO, Alkenes, and Alkynes into the Pd-C Bond  
 Abstract    -phenylglycinemethylester reacts with Pd(OAc)2 in acetic acid to give the orthopalladated, acetato bridged complex 1. Treatment of 1 with sodium halide affords the chlo-ro, bromo, and iodo bridged compounds [Me2N C (H)(C 02Me)C6H4PdX]2 (2a -c) (X = halide). From 2a and 1,1 '-bis(diphenylphosphino)ferrocene the phosphine bridged trinuclear complex 3 is obtained. Substitution of the amine ligand of 2a by the phosphino group is observed for the reaction of 2a with Ph2PC(Me)C(Me)PPh2. Insertion of 2,6-dimethyl-phenylisocyanide, CO, alkyl-vinyl-ketones, and diphenylacetylene into the Pd-C bond o f 2a -c provides the ortho­ substituted organic and organometallic derivatives of phenylglycine 6a -c, 7, 8a -b and 9a -c. The crystal structures of 1, 4a, 6a, 7 and 9a were determined by X-ray diffraction. 
  Reference    Z. Naturforsch. 53b, 448—458 (1998); eingegangen am 19. Dezember 1997 
  Published    1998 
  Keywords    Palladium(II) Complexes, ortho-Palladation, N, N-Dimethyl-C-phenylglycine, Insertion Reactions N, N-Dimethyl-C 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-0448.pdf 
 Identifier    ZNB-1998-53b-0448 
 Volume    53 
3Author    JonesRequires cookie*
 Title    Polysulfonylamine, CV [1] Die ersten N,N-disulfonylierten Sulfinsäureamide: Synthese und Kristallstrukturen von R S ( 0 )-N (S 0 2Me)2 (R = Me, CC13)  
 Abstract    P o ly su lfo n y lam in es, C V [1] T h e F irst N ,N -D isu lfo n y lated S ulfinic A m id es: S y nthesis a n d C ry sta l S tru c tu re s o f R S (0) -N (S 0 2M e)2 (R = M e, CC13) M a rtin a N äv e k e, A rm a n d B lasc h ette* , P e te r G. The novel sulfinamides R S (0) -N (S 0 2M e)2, where R = Me (la) or CC13 (lb), were ob­ tained by treating the corresponding sulfinyl chlorides with Me3S iN (S 02Me)2 or AgN-(S 0 2Me)2, respectively. A presumedly ionic 1:1 adduct of lb with 4-dimethylaminopyridine was isolated and analytically characterized. In the crystals of la (monoclinic, space group P2\!ri) and lb (monoclinic, P l j c) , the molecules feature approximately planar NS3 moieties, unusually long S (0) -N bonds and, in the case of lb, an extremely long S (0) -C bond [for la and lb, in order: sum of bond angles at nitrogen 359.5 and 357.1°, S (0) -N 178.2(2) and 173.6(2) pm, S (0) -C 178.8(2) and 194.1(2) pm]. In both molecular structures, an attractive S (0) --0 1,4-interaction leads to a 7.3° discrepancy in the S (0) -N -S 0 2 angles. The crystal packing of la displays a tape (double-chain) motif generated by two prominent intermolecu-lar C -H -O interactions involving one M e S 0 2 group and the sulfinyl oxygen atoms of two adjacent molecules, whereas in lb the molecules are associated into parallel chains via a bonding C l-"0(sulfonyl) interaction. 
  Reference    Z. Naturforsch. 53b, 734—741 (1998); eingegangen am 6. April 1998 
  Published    1998 
  Keywords    N, N-Bis(organosulfonyl)sulfinamides, Synthesis, Crystal Structure, Long S ( 0 ) -N Bond 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-0734.pdf 
 Identifier    ZNB-1998-53b-0734 
 Volume    53 
4Author    Hans Bock, N. Orbert, N. Agel, C. Hristian, N. ÄtherRequires cookie*
 Title    Wechselwirkungen in Molekülkristallen, 147 [1, 2 ]. Isostrukturelle Wirt/Gast-Einschluß-Verbindungen von N,N'-Ditosyl- p-phenylendiamin mit Aceton, Cyclopentanon, Cyclopent-2-en-l-on, 1,3-Dioxolan, Tetrahydrofuran und 2,5-Dihydrofuran  
 Abstract    Interactions in M olecular Crystals, 147 [1, 2], Isostructural H ost/G uest-Inclusion Com pounds o f N ,N'-D itosyl-/?-phenylenediam ine w ith A cetone, C yclopentanone, C yclopent-2-ene-l-one, 1,3-Dioxolane, Tetrahydro­ furane, and 2,5-D ihydrofurane H errn P ro fe sso r M a n fre d E igen g e w id m e t 
  Reference    Z. Naturforsch. 53b, 1401—1412 (1998); eingegangen am 19. August 1998 
  Published    1998 
  Keywords    N, N'-Ditosyl-p-phenylenediamine, Inclusion Compounds, Crystal Growth, Structures, Host/Guest-Relations 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-1401.pdf 
 Identifier    ZNB-1998-53b-1401 
 Volume    53 
5Author    Hans Bock, N. Orbert, N. Agel, C. Hristian, N. ÄtherRequires cookie*
 Title    Wechselwirkungen in Molekülkristallen, 149 [1 -3]. Wirt/Gast-Einschlußverbindungen von NjN'-Ditosyl-p-phenylendiamin: Die Wasserstoffbrücken-Addukte mit Morpholin; Pyridin, N,N-Dimethylformamid und Dimethylsulfoxid  
 Abstract    Interactions in M olecular C rystals, 149 [1 -3]. H ost/G uest-Inclusion Com pounds of N ,N'-D itosyl-/?-phenylenediam ine: The H ydrogen Bonded Adducts with M orpholine, Pyridine, N ,N -D im ethylform am ide, and D im ethylsulfoxide H errn P ro fe sso r M a n fred E igen g e w id m e t 
  Reference    Z. Naturforsch. 53b, 1425—1439 (1998); eingegangen am 19. August 1998 
  Published    1998 
  Keywords    N, N'-Ditosyl-/?-phenylenediamine, Inclusion Compounds, Hydrogen Acceptor and Donor Guest Molecules, Crystal Growth, Structures 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-1425.pdf 
 Identifier    ZNB-1998-53b-1425 
 Volume    53