N-Iodosaccharin (NISac): a new reusable catalyst for formal [2+4] cycloaddition of imines and enones

被引：9
作者：
Rai, Ankita [1 ]
Yadav, Lal Dhar S. [1 ]
机构：
[1] Univ Allahabad, Dept Chem, Green Synth Lab, Allahabad 211002, Uttar Pradesh, India
来源：
TETRAHEDRON LETTERS | 2010年 / 51卷 / 31期
关键词：
NISac; 4+2] Cycloaddition; Heterocycles; 1,3-Oxazines; Enones; Imines; POT 3-COMPONENT SYNTHESIS; EXPEDITIOUS SYNTHESIS; STEREOSELECTIVE-SYNTHESIS; DERIVATIVES; 1,3-OXAZINE-2,4-DIONES; MINIMYCIN; STRATEGY; PYRIDINE; AGENTS; ROUTE;
D O I：
10.1016/j.tetlet.2010.05.113
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The first example of N-iodosaccharin (NISac)-catalyzed step, pot and atom economic synthesis of 1,3-oxazines via formal [2+4] cycloaddition of imines and enones has been reported. No by-product formation, operational simplicity, ambient temperature and high yields (85-95%) are the salient features of the present synthetic protocol. After isolation of the product, the catalyst NISac can be easily recovered and reused without any loss of efficiency. (C) 2010 Elsevier Ltd. All rights reserved.
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收藏
页码：4045 / 4049
页数：5
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