کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5224248 | 1383511 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Arylhydrazonals as the aldehyde component in Baylis-Hillman reactions
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
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![عکس صفحه اول مقاله: Arylhydrazonals as the aldehyde component in Baylis-Hillman reactions Arylhydrazonals as the aldehyde component in Baylis-Hillman reactions](/preview/png/5224248.png)
چکیده انگلیسی
Arylhydrazonals were added to acrylonitrile or methyl vinyl ketone in the presence of DABCO or benzotriazole to yield the intermediate Baylis-Hillman adduct that cyclized under the reaction conditions with water elimination to yield dihydropyridazines. A pyridazine reacted with DMAD to yield a pyridine via a [4+2] Diels-Alder addition followed by retro Diels-Alder elimination of methylene aniline. Two pyridazines were condensed with DMFDMA to yield the corresponding enaminones that reacted with NH2NH2 to afford the pyrazolylpyridazines.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron - Volume 64, Issue 35, 25 August 2008, Pages 8202-8205
Journal: Tetrahedron - Volume 64, Issue 35, 25 August 2008, Pages 8202-8205
نویسندگان
Nouria A. Al-Awadi, Maher R. Ibrahim, Ismail A. Abdelhamid, Mohamed H. Elnagdi,