کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5274698 | 1385517 | 2012 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dibutylphosphate (DBP) mediated synthesis of cyclic N,Nâ²-disubstituted urea derivatives from amino esters: a comparative study
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Dibutylphosphate (DBP) mediated synthesis of cyclic N,Nâ²-disubstituted urea derivatives from amino esters: a comparative study Dibutylphosphate (DBP) mediated synthesis of cyclic N,Nâ²-disubstituted urea derivatives from amino esters: a comparative study](/preview/png/5274698.png)
چکیده انگلیسی
The N,Nâ²-disubstituted urea derivatives such as amino acid hydantoins and dihydrouracil derivatives were prepared starting from natural and unnatural amino acid esters using dibutylphosphate (DBP). During the attempted synthesis of N-heterocycles with larger than six-membered rings containing the N,Nâ²-disubstituted urea functionalities, three unexpected products namely squamolone, N-methyl pyrrolidine-2-one, and diketopiperazine were isolated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 53, Issue 45, 7 November 2012, Pages 5996-5999
Journal: Tetrahedron Letters - Volume 53, Issue 45, 7 November 2012, Pages 5996-5999
نویسندگان
Sumit K. Agrawal, Manisha Sathe, A.K. Halve, M.P. Kaushik,