期刊
ORGANIC LETTERS
卷 21, 期 2, 页码 545-548出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.8b03876
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资金
- South China Agricultural University
- Science Technology Program Project of Guangdong Province [2016B020204005]
A sulfite-promoted transformation of azoles into N-difluoromethylthioureas through N-difluoromethylation and sulfuration has been developed. In this reaction, inexpensive ethyl bromodifluoroacetate and nontoxic elemental sulfur were used as the difluoromethylation and sulfuration reagents, respectively. A variety of azoles, including benzimidazoles, imidazoles, and triazoles, performed well to afford a broad range of azole thioureas in moderate to good yields.
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