Synthesis 2018; 50(02): 341-348
DOI: 10.1055/s-0036-1590934
paper
© Georg Thieme Verlag Stuttgart · New York

One-Pot Assembly towards ω-Substituted Arylbiurets from ­Aromatic Amines, Potassium Cyanate, and Glacial Acetic Acid

Xiangting Min
a   School of Petroleum and Chemical Engineering, Dalian University of Technology, Panjin Campus, Panjin, Liaoning Province, 124221, P. R. of China
,
Jianhui Liu*
a   School of Petroleum and Chemical Engineering, Dalian University of Technology, Panjin Campus, Panjin, Liaoning Province, 124221, P. R. of China
b   State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. of China   eMail: liujh@dlut.edu.cn
,
Yawen Dong
b   State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. of China   eMail: liujh@dlut.edu.cn
,
Mustafa Hussain
b   State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. of China   eMail: liujh@dlut.edu.cn
› Institutsangaben
This work was supported financially by the State Key Laboratory of Fine Chemicals (Panjin) (Grant No. JH2014009) project and the Fundamental­ Research Funds for the Central Universities.
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Publikationsverlauf

Received: 10. Juli 2017

Accepted after revision: 13. September 2017

Publikationsdatum:
23. Oktober 2017 (online)


Abstract

A novel, simple, and highly efficient method has been designed for the synthesis of ω-substituted arylbiurets in a one-pot reaction. The primary features of this protocol include readily available starting materials, an easy work-up procedure, and yields of 51 to 87%. ω-Substituted arylbiurets can be selectively prepared with an excess of potassium cyanate (KOCN). However, use of an excess of glacial acetic acid (AcOH) switches the reaction towards the formation of N-monosubstituted urea.

Supporting Information