کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1256784 971529 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Convenient synthesis of spiro[indoline-3,4′-pyrano[2,3-c]pyrazole] and spiro[acenaphthyl-3,4′-pyrano[2,3-c]pyrazoles] via four-component reaction
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Convenient synthesis of spiro[indoline-3,4′-pyrano[2,3-c]pyrazole] and spiro[acenaphthyl-3,4′-pyrano[2,3-c]pyrazoles] via four-component reaction
چکیده انگلیسی

The domino four-component reaction of hydrated hydrazine, dimethyl acetylenedicarboxylate, isatin and malononitrile or ethyl cycanoacetate in ethanol in the presence of triethylamine afforded the polysubstituted spiro[indoline-3,4′-pyrano[2,3-c]pyrazole] derivatives in satisfactory yields. Under similar conditions, the four-component reaction containing acenaphthenequinone also resulted in the spiro[acenaphthyl-3,4′-pyrano[2,3-c]pyrazole] in good yields.

The base promoted four-component reaction of hydrated hydrazine, dimethyl acetylenedicarboxylate, isatines and malononitrile (ethyl cycanoacetate) in ethanol afforded polysubstituted spiro[indoline-3,4′-pyrano[2,3-c]pyrazoles] and spiro[acenaphthyl-3,4′-pyrano[2,3-c]pyrazoles].Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Chemical Letters - Volume 26, Issue 7, July 2015, Pages 889–893
نویسندگان
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