کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9622488 | 160566 | 2005 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Some pyridine derivatives as “route-specific markers” in 4-methoxyamphetamine (PMA) prepared by the Leuckart method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Some pyridine derivatives as “route-specific markers” in 4-methoxyamphetamine (PMA) prepared by the Leuckart method Some pyridine derivatives as “route-specific markers” in 4-methoxyamphetamine (PMA) prepared by the Leuckart method](/preview/png/9622488.png)
چکیده انگلیسی
The two previously unknown isomeric aryl-methylpyridines were prepared and analysed. Both 2,6-dimethyl-3,5-(4â²-methoxyphenyl)pyridine and 2,4-dimethyl-3,5-di-(4â²-methoxyphenyl)pyridine have been identified as a new by-product in the crude 4-methoxyamphetamine (PMA) obtained via the Leuckart method. The synthesis of 2,6-dimethyl-3,5-diphenylpyridine, which is connected to amphetamine chemistry, is also reported. It was also found that different reagents (formamide, formamide/HCOOH, ammonium formate) used in the course of the Leuckart synthesis of PMA significantly affected the impurity content. The presented results point out on the “high-boiling pyridines” as compounds especially useful in the comparative analysis, since their profile seems to be independent on the purification procedure and may be conveyed from the crude reaction mixture even into a carefully purified final product.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Forensic Science International - Volume 152, Issues 2â3, 10 September 2005, Pages 157-173
Journal: Forensic Science International - Volume 152, Issues 2â3, 10 September 2005, Pages 157-173
نویسندگان
Dariusz BÅachut, Krystyna Wojtasiewicz, Zbigniew Czarnocki,