| تعداد نشریات | 126 |
| تعداد شمارهها | 7,095 |
| تعداد مقالات | 76,247 |
| تعداد مشاهده مقاله | 151,757,460 |
| تعداد دریافت فایل اصل مقاله | 113,834,966 |
A CONVENIENT SYNTHESIS OF MACROCYCLIC DIAMIDES | ||
| Journal of Sciences, Islamic Republic of Iran | ||
| مقاله 6، دوره 9، شماره 3، آذر 1998 اصل مقاله (628.03 K) | ||
| چکیده | ||
| Some new macrocyclic dibenzotrioxadiamides, dibenzotetraoxadiamide, dibenzopentaoxadiamide, dibenzothiatrioxadiamide, tribenzotrioxadiamides and tetrabenzohexaoxadiamide (14-21), (26) and (27) have been prepared. These compounds were obtained in the macrocyclization step by reacting the diamine (4) with appropriak dicaxboxylic acid dichlorides (5-13) and (24). The cyclization does not require high dilution techniques or template effect and provides the expected dilactams in high yields ranging from 70% to 95%. | ||
|
آمار تعداد مشاهده مقاله: 849 تعداد دریافت فایل اصل مقاله: 1,161 |
||