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Li X, Gan B, Peng Z, Mi Z, Xie Y. Zinc Acetate-Mediated Regioselective N-Acylation of 1,3-Disubstituted Selenoureas. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15260514562361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
N-acetylureas were synthesised regioselectively from 1,3-disubstituted selenoureas and zinc acetate. Regioselectivity was dependent on the p Ka of the amine attached to the selenourea and occurred towards the amine with the lower p Ka. The approach provided a simple, mild and efficient way to construct various N-acetylureas regioselectively in moderate to good yields (53–88%). A plausible mechanism was proposed for the formation of N-acetylureas.
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Affiliation(s)
- Xue Li
- Drug Research Center, Traditional Chinese Medicine Institute of Jiangxi, Nanchang 330046, P.R. China
| | - Bin Gan
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Zhixiang Peng
- Drug Research Center, Traditional Chinese Medicine Institute of Jiangxi, Nanchang 330046, P.R. China
| | - Zhisheng Mi
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Yuanyuan Xie
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
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Toyoda Y, Ninomiya M, Ebihara M, Koketsu M. The Staudinger reaction with 2-imino-1,3-thiaselenanes toward the synthesis of C4 spiro-β-lactams. Org Biomol Chem 2013; 11:2652-9. [DOI: 10.1039/c3ob00073g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Selective synthesis of novel 2-imino-1,3-selenazolidin-4-ones and 2-amino-1,3,4-selenadiazin-5-ones from isoselenocyanates. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.12.068] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Koketsu M, R. Garud D, Ninomiya M. Selenium-Containing Heterocycles Using Selenoamides, Selenoureas, Selenazadienes, and Isoselenocyanates. HETEROCYCLES 2010. [DOI: 10.3987/rev-10-677] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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