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1978 (1)
1977 (2)
1Author    Maria Konieczny, George SosnovskyRequires cookie*
 Title    Novel Aspects in the Preparation of Phorone  
 Abstract    The condensation of acetone using anhydrous hydrogen chloride results after three weeks at room temperature, in a 15% yield of phorone (4) and a 75% yield of mesityl oxide (5). In the presence of one weight percent of the Lewis acid, aluminium chloride, the yield of 4 is increased to 39%. An increase in the amount of the Lewis acid, aluminium chloride, to ten weight percent results in a 22% yield of phorone (4) and a 68% yield of mesityl oxide (5). In the presence of one hundred weight percent of aluminium chloride, (CH3)2C = CHC CHr C(CH3)2 (CH3)2 C=CHCCH3 
  Reference    Z. Naturforsch. 33b, 454—460 (1978); received Januaiy 4 1978 
  Published    1978 
  Keywords    Phorone, Mesityl Oxide, Triacetoneamine, Nitroxyls 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0454.pdf 
 Identifier    ZNB-1978-33b-0454 
 Volume    33 
2Author    G. S., M. K.Requires cookie*
 Title    Preparation of Triacetoneamine, I  
 Abstract    The preparation of triacetoneamine (1) by the condensation of acetone w ith ammonia in the presence of calcium chloride at room temperature is investigated. In addition to 1, acetonin (3), diacetone alcohol (4), m esityl oxide, and diacetoneamine (7) are formed during the reaction. The progress of the reaction is monitored by gas chromatography. The effects of the extent and the rate of stirring, the amount of ammonia introduced on the critical first day of the reaction, and the mesh size and the amount of calcium chloride on the purity and weight yield of 1 are studied. The yield of 1 is maximized by recovery of the unreacted acetone. The reaction at room temperature under optimized conditions is described. 
  Reference    (Z. Naturforsch. 32b, 328—337 [1977]; received November 29 1976) 
  Published    1977 
  Keywords    Triacetoneamine, Diacetoneamine, Mesityl Oxide, Acetonin, Diacetone Alcohol 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0328.pdf 
 Identifier    ZNB-1977-32b-0328 
 Volume    32 
3Author    G. S., M. K.Requires cookie*
 Title    Preparation of Triacetoneamine, II  
 Abstract    The preparation of triacetoneamine (1) by the condensation o f acetone with ammonia in the presence of calcium chloride is investigated. The progress of the reaction is monitored by gas chromatography. The effects of added ammonium chloride, the total amount of ammonia introduced, and the temperature of the reaction on the weight yield and purity of 1 are investigated. The optimized conditions for the preparation of 1 at 59 °C are de­ scribed. 
  Reference    (Z. Naturforsch. 32b, 338—346 [1977]; received November 29 1976) 
  Published    1977 
  Keywords    Triacetoneamine, Diacetoneamine, Mesityl Oxide, Acetonin, Diacetone Alcohol 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0338.pdf 
 Identifier    ZNB-1977-32b-0338 
 Volume    32