Infrared studies on the thermal degradation of dl-α-glutamic acid
✍ Scribed by B. Righetti; M. Tamba
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 312 KB
- Volume
- 38
- Category
- Article
- ISSN
- 1386-1425
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✦ Synopsis
The thermal degradation of oL-a-glutamic acid (1) has been reinvestigated. A thermal decomposition method combined with i.r. spectroscopy has been utilized. 1.r. spectra of (1) and L-Spyrrolidone-2-carboxylic acid (2) at different temperatures are reported and a comparison between the spectra is made. The data suggest that (1) decomposes by dehydration reaction forming (2) and finally 3,5-&IO-tetraketoperhydropyrrolo [a, d] pyrazine (4).
📜 SIMILAR VOLUMES
## SYNOPSIS DL-hginine DL-glutamate monohydrate and DL-arginine DL-aspartate, the first DL-DL amino acid-amino acid complexes to be prepared and x-ray analyzed, crystallize in the space group Pi with a = 5.139(2), b = 10.620(1), c = 14.473(2) A, a = , 101.34(1)", p = 94.08(2)", y = 91.38(2)" and u
The optical rotatory dispersion in the range 630-340 mp has been measured for aqueous solutions of the tetramethylammonium salt of a-poly-L-glutamic acid to compare the effects produced by added tetramethylammonium chloride and magnesium chloride at equivalent ionic strengths. The addition of magnes