کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5220680 1383396 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of 2-amino-1,3,4-oxadiazoles from isoselenocyanates via cyclodeselenization
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Synthesis of 2-amino-1,3,4-oxadiazoles from isoselenocyanates via cyclodeselenization
چکیده انگلیسی

An efficient one-pot method to access 2-amino-1,3,4-oxadiazoles from isoselenocyanates and hydrazides or dihydrazides was developed via cyclodeselenization. Without any harsh reagents, various 2-amino-1,3,4-oxadiazoles were obtained in considerably high yields (82%-97%) and purities (>99%) directly with simple crystallization in ethanol. And the formed precipitated Se powder during the reaction could be recycled for preparation of isoselenocyanates efficiently. A plausible mechanism is proposed for the formation of the target products.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron - Volume 67, Issue 30, 29 July 2011, Pages 5369-5374
نویسندگان
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