کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1265917 972247 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ultrasound assisted reactions of steroid analogous of anticipated biological activities
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Ultrasound assisted reactions of steroid analogous of anticipated biological activities
چکیده انگلیسی
A new, fast, efficient and general method for preparation of steroid analogous of anticipated biological activity under ultrasound irradiation and classical heating is reported. The reaction pathway involves two steps: quaternization of phthalazine heterocycle followed by a 3+2 dipolar cycloaddition of cycloimmonium ylides to dienophiles. Under ultrasound the reaction time decreases substantially, the yields are higher, the reaction conditions are milder. A comparative study ultrasound verses classical heating has been done.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics Sonochemistry - Volume 16, Issue 3, March 2009, Pages 312-315
نویسندگان
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