2,2,6,6-Tetramethylpiperidin-4-ol

Abstract

Key indicatorsSingle-crystal X-ray study T = 292 K Mean (C-C) = 0.002 Å R factor = 0.052 wR factor = 0.120 Data-to-parameter ratio = 17.0For details of how these key indicators were automatically derived from the article, see

Solubility and Crystallization Process of 2,2,6,6-Tetramethyl-4-piperidinol (TMP)

“…Moreover, other common factors that influence the crystallization process, such as solution concentration ( E ), stirring rate ( F ), cooling rate ( G ), and crystal seed loading in mass fraction of the solute ( H ), were considered. Hence, an OA 16 (4) experiment was employed to optimize the above-mentioned factors …”

“…In industrial production, TMP is usually synthesized through the catalytic hydrogenation method, chemical reduction, and electrochemical synthesis; in the end, TMP is crystallized with a high level of purity and appropriate crystal-size distribution (CSD). The crystal structure of TMP has been determined by She et al…”

“…1,2 In industrial production, TMP is usually synthesized through the catalytic hydrogenation method, 1 chemical reduction, 3 and electrochemical synthesis; 4 in the end, TMP is crystallized with a high level of purity and appropriate crystal-size distribution (CSD). The crystal structure of TMP has been determined by She et al 5 The crystal size and the crystal size distribution (CSD) are critical parameters that determine the quality of a crystal product, 6,7 influencing the flowability and the dissolution rate in downstream, and so forth. However, TMP crystals that are industrially produced via the existing water−ethanol antisolvent process have a small size and a wide CSD, which does not meet the demands of downstream users.…”

4-Hydroxy-2,2,6,6-tetramethylpiperidinium trifluoroacetate

“…For general background, see: Borzatta & Carrozza (1991). For related structures, see: Nengfang et al (2005).…”