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  • 2020-2023
  • 1990-1994
  • 1985-1989
  • 1965-1969  (6)
  • 1945-1949
  • 1900-1904
  • 1860-1869
  • 1820-1829
  • 1966  (6)
  • Synthetic methods  (4)
  • Analytical Chemistry and Spectroscopy
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Materialart
Erscheinungszeitraum
  • 2020-2023
  • 1990-1994
  • 1985-1989
  • 1965-1969  (6)
  • 1945-1949
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Jahr
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    Prolongation of dioestrus in rats with diencephalic and mesencephalic lesions (1966)
    Springer
    Experimental brain research 1 (1966), S. 299-305 
    Details
    ISSN: 1432-1106
    Schlagwort(e): Prolongation of dioestrus ; Brain-stem ; Rat
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Diencephalic and mesencephalic lesions in albino rats elicited a disturbance of the vaginal oestrous cycle characterized by “pseudopregnancy-like” prolongation of dioestrus; occasionally decidual responses could be elicited by uterine traumatization. Oestrogen administration on the day before traumatization failed to enhance significantly the frequency of decidual responses in rats with diencephalic lesions, but succeeded in doing so in rats with mesencephalic lesions. It is assumed that the lesions destroy partially the mesencephalo-hypothalamic afferent system containing nerve fibres stimulating the hypothalamic cells producing the luteotrophin (prolactin) inhibiting factor.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00237702
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  • 2
    Digitale Medien
    Digitale Medien
    Pupillary paralysis evoked by thalamic spreading depression in rats (1966)
    Springer
    Experimental brain research 2 (1966), S. 168-175 
    Details
    ISSN: 1432-1106
    Schlagwort(e): Spreading depression ; Pupilla ; Thalamus ; Rat
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Spreading depression elicited in the thalamus of albino rats anesthetized with Dial by microinjection of 0.2–1.0 μl 25% KCl is accompanied by a maximal pupillary dilatation of the paralytic type. The mydriasis starts immediately after KCl application, culminates about 90 sec later and then slowly subsides with a half time of about 5 min. Although with lateralized KCl application thalamic spreading depression reaches the ipsilateral lateral geniculate body approximately 1 min earlier than the contralateral one, the pupillary reactions are strictly synchronous in both eyes. Participation of the sympathetic fibres was ruled out by the observation that thalamic spreading depression evokes the same mydriasis in the “encéphale isolé” rats. Cortical spreading depression, on the contrary, elicits only slight and shortlasting mydriasis. Comparison of the spatial march of spreading depression through the thalamus with the time course of the pupillary reaction indicates that the maximum mydriasis is probably caused by direct invasion of the Edinger-Westphal nucleus by the spreading depression process.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00240404
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  • 3
    Digitale Medien
    Digitale Medien
    Ring Closures with Carbon Monoxide (1966)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 5 (1966), S. 435-446 
    Details
    ISSN: 0570-0833
    Schlagwort(e): C-C coupling ; Ring closure ; Synthetic methods ; Chemistry ; General Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Carbon monoxide undergoes catalytic reactions with unsaturated compounds to give heterocyclic carbonyl compounds. This cyclization has led to new syntheses of imides, lactams, lactones, phthalimidines, indazolones, and tetrahydroquinazolines.
    Zusätzliches Material: 8 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/anie.196604351
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  • 4
    Digitale Medien
    Digitale Medien
    Syntheses of Thiocarboxamides (1966)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 5 (1966), S. 447-461 
    Details
    ISSN: 0570-0833
    Schlagwort(e): Thiocarboxamides ; Synthetic methods ; Chemistry ; General Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Methods for the preparation of thiocarboxamides are described with special reference to progress achieved in the last few years. The discussion is arranged according to the eight most important reaction types.
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/anie.196604471
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  • 5
    Digitale Medien
    Digitale Medien
    Synthesis of Isocyanates and Carbodiimides (1966)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 5 (1966), S. 704-712 
    Details
    ISSN: 0570-0833
    Schlagwort(e): Isocyanates ; Carbodiimides ; Synthetic methods ; Chemistry ; General Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: The reaction of 1,3-disubstituted ureas and 1-arylsulfonyl-3-alkylureas with phosgene permits the preparation of a number of isocyanates and sulfonyl isocyanates that had not previously been described, or that were difficult to prepare. 1,3-Disubstituted thioureas and 1-aryl-(or alkyl)sulfonyl-3-alkylthioureas give carbodiimides. Thionyl chloride and phosphorus pentachloride react with the urea derivatives in the same way as phosgene. Oxalyl chloride reacts with ureas to form parabanic acid derivatives, whereas with thiourea it gives 2-imino-1,3-thiazolidine-4,5-diones, which can isomerize to parabanic acid derivatives.
    Zusätzliches Material: 9 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/anie.196607041
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  • 6
    Digitale Medien
    Digitale Medien
    Syntheses of Carboxylic Acids from 1, 1-DichloroehyleneK. Bott, Angew. Chem. 77, 967 (1965); Angew. Chem. internat. Edit. 4, 956 (1965); Chem. Ber., in press.Dedicated to Professor F. Broich on his 60th birthday (1966)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 5 (1966), S. 870-874 
    Details
    ISSN: 0570-0833
    Schlagwort(e): Carboxylic acids ; 1,1-Dichloroethylene ; Synthetic methods ; Chemistry ; General Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Many β-alkyl- and β-arylpropionic acids are readily obtainable by the reaction of secondary or tertiary alcohols, esters of these, or olefins with the inexpensive 1, 1-dichloroethylene in sulfuric acid. The success of the synthesis depends on the bulk and energy of the carbonium ion intermediate formed from the alcohols or olefins. With carbonium ions having one H atom attached to the carbonium C atom, electrophilic substitution of the 1,1-dichloroethylene takes place to a small extent. Dicarboxylic acids and carboxylic acids with higher molecular weights are sometimes formed as a result of side reactions.
    Zusätzliches Material: 2 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/anie.196608701
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