cas 121885-09-4, Piperazine-2-tert-butylamide | Articles data ｜lookchem

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121885-09-4

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A Reaction Calorimetric Investigation of the Hydrogenation of a Substituted Pyrazine
Reaction calorimetry was the primary tool in investigations of the liquid-phase hydrogenation of a substituted pyrazine compound carried out over supported Pd catalysts.In addition to providing information about gas-liquid mass transfer limitations, calorimetric measurements provided a kinetic analysis of how product selectivity in this consecutive reaction network may be tuned by changing reaction conditions.Concentration profiles developed from fitting the heat flow data to a first-order model were compared with analytical measurements of concentration, demonstrating the utility of combining independent measurements of reaction progress as a means of assessing the validity of a kinetic model.
Landau, Ralph N.,Singh, Utpal,Gortsema, Frank,Sun, Yongkui,Gomolka, Susan C.,et al.'
p. 201 - 208
(1995)
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Process for the preparation of optically active piperazine-2-carboxylic acid derivatives
Optically active piperazine-2-carboxylic acid derivatives of the general formula: STR1 in which X is alkoxy or a (substituted) amino group, are prepared by asymmetric hydrogenation of the corresponding pyrazinecarboxylic acid derivatives, catalyzed by optically active rhodium complexes. The compounds of the formula I are intermediates for the preparation of pharmaceutical active substances, for example, HIV protease inhibitors.
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(2008/06/13)

More Articles about upstream products of 121885-09-4

121885-10-7
pyrazinecarboxylic acid tert-butylamide

More Articles about downstream products of 121885-09-4

150323-35-6
t-butyl (S)-3-(tert-butylcarbamoyl)-piperazine-1-carboxylate

Chemical Properties

Boiling Point: 368.2 °C at 760 mmHg
Flash Point:156.1 °C
Density: 0.984 g/cm³
Vapor Pressure: 1.29E-05mmHg at 25°C
Refractive Index: 1.462
PSA: 53.16000
LogP: 0.51100

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