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'Diazoketones' in keywords
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1996 (1)
1979 (1)
1Author    Salvatore SorrisoRequires cookie*
 Abstract    The electric dipole moments of acetyldiazomethane (MeCOCHN2) and 1-acetyl-1-diazo-ethane (MeCOCMeN2) between 10 and 70 °C have been measured. Using appropriate group and bond moments, the concentrations of the two rotamers present in each have been calculated and, hence, the equilibrium constant for the cis trans equilibrium at the various temperatures. ^ The change in standard enthalpy (A H°), standard free energy (A G°) and standard entropy (A S°) are reported for the conversion of one mole of cis isomer to trans isomer. 
  Reference    Z. Naturforsch. 34b, 1530—1534 (1979); received May 17 1979 
  Published    1979 
  Keywords    Dipole Moments, Diazoketones, Thermodynamic, Dielectric Measurements 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-1530.pdf 
 Identifier    ZNB-1979-34b-1530 
 Volume    34 
2Author    Z. NaturforschRequires cookie*
 Title    Thermolyse und Photolyse von cyclischen Diazoverbindungen [1]  
 Abstract    T h erm o ly sis a n d P hotolysis o f Cyclic D iazo C o m p o u n d s [1] H a n s-D ie tric h S tachel*, H e rm a n n P o sch e n rie d er, J u tta R e d lin The rhodium-catalyzed decomposition of the diazoketones 4 in teAY-butyl alcohol at 130 °C furnishes the m onoenolethers 5 and, after deprotection, the ac/-reductones 6. In absence of intercepting agents the intermediate carbenes preferentially undergo Wolff rearrangem ent with ring contraction. In this case the /J-thiolactone 10b or the /J-lactone 13 or the /M actam 14 are thermolysis products of the corresponding diazoketones. During photolysis of the diazoketones 4d/4g in presence of alcohols the 2-azetidinones lOc/d are formed. 
  Reference    Z. Naturforsch. 51b, 1325—1333 (1996); eingegangen am 9. Mai 1996 
  Published    1996 
  Keywords    Diazoketones, Reductones, 2-Oxetanones, 2-Thietanones, 2-Azetidinones 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-1325.pdf 
 Identifier    ZNB-1996-51b-1325 
 Volume    51