Three-component one-pot synthesis of&IT N&IT-arylsulfonyl-2-iminocoumarins

被引：10
|
作者：
Mandal, Prashant S. [1 ]
Kumar, A. Vijay [1 ]
机构：
[1] Inst Chem Technol, Dept Chem, Bombay 400019, Maharashtra, India
来源：
TETRAHEDRON | 2018年 / 74卷 / 15期
关键词：
Iminocoumarin; Coumarin; Catalyst-free; DABCO; 2-MeTHF; IMINOCOUMARINS; DERIVATIVES; SOLVENTS; DABCO; INHIBITORS; CATALYSIS; COUMARIN;
D O I：
10.1016/j.tet.2018.02.052
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A one-pot, synthesis of N-arylsulfonyl-2-iminocoumarins is developed at ambient temperature by the reaction of 2-hydroxybenzaldehydes, arylacetonitriles, and aryl sulfonyl chlorides using DABCO as a base in a bio-mass-derived green solvent 2-MethylTHF. A simple telescoped process in which 2H-chromen-2-imines are formed in situ by the condensation of 2-hydroxybenzaldehyde and arylacetonitriles. The formed imines are further reacted with arylsulfonyl chlorides in a one-pot approach to obtain the target compounds. This protocol provides access to 3-aryl-N-arylsulfonyl-2-iminocoumarins in a practical and environmentally benign way avoiding cumbersome steps of intermediate syntheses and purifications. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1900 / 1907
页数：8
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