کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5262923 | 1385198 | 2013 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Masked mercapto acid-driven MCR in task-specific ionic liquid: a new sterocontrolled entry into bicyclic 1,3-thiazines
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Masked mercapto acid-driven MCR in task-specific ionic liquid: a new sterocontrolled entry into bicyclic 1,3-thiazines Masked mercapto acid-driven MCR in task-specific ionic liquid: a new sterocontrolled entry into bicyclic 1,3-thiazines](/preview/png/5262923.png)
چکیده انگلیسی
An unprecedented multi-component reaction for the synthesis of thiosugar-annulated 1,3-thiazines is reported. The envisaged synthetic strategy involves the reaction of d-glucose/d-xylose and 2-methyl-2-phenyl-1,3-oxathiolan-5-one with AcONH4/RNH2 in task specific ionic liquid (TSIL), [bmim]SCN which afforded thiosugar annulated 1,3-thiazines in excellent yields (83-93%). The reaction is effected via ionic liquid promoted Michael addition followed by mercaptoacetylative ring transformation in a one-pot procedure and the ionic liquid, [bmim]OH could be easily recycled for further use without any loss of efficiency and be used for the synthesis of [bmim]SCN, thus allowing recycling of the TSIL for further use.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 54, Issue 48, 27 November 2013, Pages 6469-6473
Journal: Tetrahedron Letters - Volume 54, Issue 48, 27 November 2013, Pages 6469-6473
نویسندگان
Vijai K. Rai, Prashant Kumar Rai, Yogita Thakur,