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311.
Karim M. Abdel‐Hay Ph.D. Jack DeRuiter Ph.D. C. Randall Clark Ph.D. 《Journal of forensic sciences》2015,60(2):285-294
A number of N‐substituted piperazines have been described as drugs of abuse in recent years. This new drug category includes several series of aromatic ring substituted phenylpiperazines. The wide variety of available precursors makes regioisomerism a significant issue in these totally synthetic compounds. In this study, a complete series of regioisomeric dimethoxyphenylpiperazines were synthesized and evaluated using GC‐MS and FT‐IR. The EI mass spectra show fragments characteristic of both the dimethoxyphenyl and the piperazine portions of the molecules including the dimethoxyphenylaziridinium cation (m/z 180) and dimethoxyphenyl cation (m/z 137). The ion at m/z 56 for the C3H6N+ fragment is characteristic of the piperazine ring and was observed in all the spectra. The perfluoroacyl derivatives were resolved by GC, and their mass spectra showed some differences in relative abundance of ions. FTIR provides direct confirmatory data for differentiation between the regioisomeric dimethoxyphenylpiperazines, and GC separation was accomplished on an Rtx‐200 phase. 相似文献
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In a court-mandated, child-focused class for divorcing parents, parental mastery of skills taught were evaluated both immediately after the class and 6 months later. Parents perceived the classes to be realistic and useful. Skills were effectively learned and were maintained over the evaluation period. Parents reported that they were successful in dramatically lowering exposure of their children to parental conflict. Relative to a comparison group of parents divorcing the year before the classes were initiated, parents completing the class were better able to work through how they would handle difficult child-related situations with their ex-spouses and were willing to let their children spend more time with the other parent. Few gender differences were observed—mothers perceived the class as more realistic; fathers showed greater improvement on some skills. Similarly, interest level in further training was not predictive of class benefits, suggesting that enthusiasm for parenting training is probably not essential. 相似文献
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European Journal of Political Research - 相似文献
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