کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5275950 | 1385546 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
ZrCl4 or ZrOCl2 under neat conditions: optimized green alternatives for the Biginelli reaction
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: ZrCl4 or ZrOCl2 under neat conditions: optimized green alternatives for the Biginelli reaction ZrCl4 or ZrOCl2 under neat conditions: optimized green alternatives for the Biginelli reaction](/preview/png/5275950.png)
چکیده انگلیسی
Biginelli reactions were performed using either ZrCl4 or ZrOCl2·8H2O as catalysts under neat conditions. Shorter reaction time than most of the classical methods was required when ZrCl4 was used. In general, 3,4-dihydropyrimidin-2(1H)-ones and thioxo-3,4-dihydropyrimidin-2(1H)-ones were obtained under neat conditions in moderate to good yields and good purity without using harmful solvents in the work up.
3,4-Dihydropyrimidin-2(1H)-ones and thioxo-3,4-dihydropyrimidin-2(1H)-ones were prepared by optimized methods using either ZrCl4 or ZrOCl2·8H2O as catalysts under neat conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 48, Issue 33, 13 August 2007, Pages 5777-5780
Journal: Tetrahedron Letters - Volume 48, Issue 33, 13 August 2007, Pages 5777-5780
نویسندگان
Juan Carlos RodrÃguez-DomÃnguez, Dan Bernardi, Gilbert Kirsch,