کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5220670 1383395 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of benzothieno[2,3-b]thiophenes, [2,3-b:3′,2′-d]-dithienothiophenes and their selenium derivatives via electrophilic cyclization and McMurry cyclization
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Synthesis of benzothieno[2,3-b]thiophenes, [2,3-b:3′,2′-d]-dithienothiophenes and their selenium derivatives via electrophilic cyclization and McMurry cyclization
چکیده انگلیسی

Benzothieno[2,3-b]thiophenes, [2,3-b:3′,2′-d]-dithienothiophenes, and their selenium derivatives were synthesized in good yields from readily available 3-ethynyllithio-benzo[b]thiophenyllithio compounds, sulfur or selenium, and 2 equiv of acid chlorides. Two heteroarene rings were constructed by a twofold cyclization via an acid chloride-induced electrophilic ring closing and the McMurry cyclization using Zn/TiCl4 reagents.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron - Volume 68, Issue 26, 1 July 2012, Pages 5283–5289