Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Orthoamide, XII Synthese von O.N- bzw. N.N-Acetalen der Acylisocyanate aus Amidacetalen bzw. einem Aminal-tert.-butylester und N-Halogen-carbonsäureamiden, Halogenharnstoffen und N-Chlor-urethan (1970)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 103 (1970), S. 245-255 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Orthoamides, XII: Synthesis of Acyl Isocyanate O,N- or -N,N-Acetals from Amide Acetals or from an Aminal tert-Butylester and N-Halogencarbonamides, Halogen Ureas and N-ChlorourethanesDimethylformamide dialkylacetals (2) and aminal-tert-butylester 5 [bis(dimethylamino)-tert-butoxymethane] react with N-halogen carboxylic acid amides, halogen ureas and N-chlorourethanes to give acyl isocyanate-O,N -or -N,N-acetals (isoureas 3 or guanidines 6, respectively).
    Notes: Dimethylformamid-dialkylacetale (2) und Aminal-tert.-butylester 5 (Bis-dimethylamino-tert.-butyloxy-methan) bilden mit N-Halogen-carbonsäureamiden, Halogenharnstoffen und N-Chlor-urethan Acylisocyanat-O.N- bzw. -N.N-acetale (Isoharnstoffe 3 bzw. Guanidine 6).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19701030132
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Orthoamide, IX über die Umsetzung CH-acider Verbindungen mit Amidacetalen, einem Aminal-tert.-butylester und Tris-dimethylamino-methan (1970)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 103 (1970), S. 210-221 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Orthoamides, IX: Reaction of CH-Acidic Compounds with Amide Acetals, an Aminal-tert-butylester and Tris(dimethylamino)methaneOrthoamides react with hydrogen cyanide and alkynes to give 2-dimethylamino-2-alkoxy-nitriles (2, 4, 6, 8, 10), 2,2-bis(dimethylamino)nitriles (12,12a), and 3,3-bis(dimethylamino)-alkynes (14-16). Methane derivatives heated with dimethylformamide diäthylacetal (1) react to form the alkylated methane derivatives (25, 26, 28, 29, 30, 34), whereas under mild conditions methane derivatives react with the aminal tert-butylester 11 to produce tetramethyl-formamidinium salts (31, 32, 33, 35).
    Notes: Orthoamide reagieren mit wasserfreier Blausäure und Alkinen zu 2-Dimethylamino-2-alkoxy-nitrilen (2, 4, 6, 8, 10), 2.2-Bis-dimethylamino-nitrilen (12, 12a) und 3.3-Bis-dimethylamino-alkinen-(l) (14-16). Aus Methan-Derivaten und Dimethylformamid-diäthylacetal (1) ent-stehen in der Wärme die alkylierten Methan-Derivate (25, 26, 28, 29, 30, 34) und mit dem Aminal-tert.-butylester 11 unter milden Reaktionsbedingungen die Tetramethylformamidini-um-Salze(31,32, 33,35).
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19701030129
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Reaktionen mit Halogenwasserstoffaddukten der Nitrile, VI Synthese von Derivaten der 1.3-Benzothiazionone-(4) und des 1.3-Benzoselenazinons-(4) (1970)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 103 (1970), S. 413-425 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions with Hydrogen Halide Adducts of Nitriles,VI Synthesis of Derivatives of 1,3-Benzothiazin-4-ones and 1,3-Benzoselenazin-4-oneBy reaction with hydrogen chloride 2-thiocyanatobenzoyl chlorides(1-7,15) yield 2-chloro-1,3-benzothiazin-4-ones(8-14,16) and 2-selenocyanatobenzoyl chloride(18) yields 2-chloro-1,3-benzoselenazin-4-one (19). The preparation of 2-chloro-1,3-benozothiazin-4-ones may also be carried out in one step by reaction of 2-thiocyanatobenzoic acids with phosphorous pentachloride in n-dibutyl ether. As azavinylogous acid halides the 2-chloro-1,3-benzothiazin-4-ones react rapidly with bases such as amines (to give 21-26) or salts of CH acidic compounds (to give27-29).
    Notes: 2-Thiocyanato-benozylchloride (1-7,15) setzen sich mit Chlorwasserstoff zu 2-Chlor-1.3-benzothiazionen-(4) (8-14, 16) um. Analog erhält man aus 2- Selenocyanato-benozylchlorid (18) 2-Chlor-1.3-benzoselenazinon-(4) (19). Die Darstellung der 2-Chlor-1.3-benozothiazionone-(4) kann auch als Einstufenprozeß durch Reaktion von 2-Thiocyanato-benzoesäuren mit Phosphorpentachlorid erfolgen. Sie reagieren als azavinyloge Säurechloride rasch mit nucleophilen Agentien wie Aminen(zu21-26) oder CH-aciden Verbindungen (zu27-29).
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19701030212
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...