Chorismate synthase (EC 4.6.1.4) is the shikimate pathway enzyme that catalyzes the conversion of 5-enolpyruvylshikimate 3-phosphate (EPSP) to chorismate. The enzyme reaction is unusual because it involves a trans-1,4 elimination of the C-3 phosphate and the C-6 proR hydrogen and it has an absolute
Secondary deuterium isotope effect on the maleic anhydride-cyclopentadiene reaction
โ Scribed by Dale E. Van Sickle
- Publisher
- Elsevier Science
- Year
- 1961
- Tongue
- French
- Weight
- 151 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0040-4039
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In a recent cosnxurlcation (1) we concluded that reasonable estimates of secotiary deuterium isotope effects caused by rronbotied interactions may be obtained by using Bartell's procedure (2). Particularly disturbing was the discrepancy between the experlmentat isotope effect,
Grafting reactions were performed in a Haake torque rheometer, according to a central composite experimental design, where the maleic anhydride and peroxide concentrations, rotor speed, and reaction time were varied. The 27 formulations were analyzed by Fourier transformed infrared spectroscopy and
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