Synthesis of various cyclopropyl methyl bromide and its derivatives from ketones and/or aldehydes and some β-dicarbonyl compounds in the presence of BrCN and Et3N
محل انتشار: بیست و هفتمین کنفرانس شیمی آلی ایران
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 198
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شناسه ملی سند علمی:
ISOC27_128
تاریخ نمایه سازی: 19 اسفند 1399
چکیده مقاله:
The ultimate goal in this paper has been developed for the synthesis of structurally various bromomethyl cyclopropane via an α-bromoketone and/or aldehydes with ethyl cyanoacetate or malononitrile and cyanogen bromide (BrCN) in the presence of Et3N to give products in excellent yields within about 3 s. The α-bromination of carbonyl compounds is an important transformation in organic synthesis chemistry. 1–2 There are several routes for the synthesis of cyclopropane ring frame in organic compounds, such as cyclopropanation of an aldehyde in the presence of BrCN and Et3N with β-dicarbonyl compound as malononitrile,3 ethyl cyanoacetate.4
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نویسندگان
Saeed Gholizadeh
Organosilicon Research Laboratory, Faculty of Chemistry, University of Tabriz, Tabriz ۵۱۶۶۶‑۱۴۷۶۶, Iran
Kazem D. Safa
Organosilicon Research Laboratory, Faculty of Chemistry, University of Tabriz, Tabriz ۵۱۶۶۶‑۱۴۷۶۶, Iran
Nader Noroozi Pesyan
Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia ۵۷۱۵۹, Iran