ZfN: Search Results

1	Author	Maria Konieczny, George Sosnovsky	Requires 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

2	Author	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

3	Author	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