کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5220159 1383379 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Access to 2-alkyl chromanones via a conjugate addition approach
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Access to 2-alkyl chromanones via a conjugate addition approach
چکیده انگلیسی

The introduction of alkyl substituents at C-2 of chromanones via conjugate addition of silyl enol ethers to a variety of chromenones is reported. In most cases racemic 2-alkyl chromanones were obtained in good yield in the presence of TMSOTf. The copper(II)-promoted conjugate addition of silyl enol ethers to chromenones was also carried out, albeit in low yields and no selectivity. Reliable syntheses of the chromenones via acylation of the corresponding β-diketo-compounds are also described.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron - Volume 68, Issue 34, 26 August 2012, Pages 6948-6956
نویسندگان
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