期刊
ORGANIC LETTERS
卷 19, 期 12, 页码 3223-3226出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.7b01339
关键词
-
资金
- National Natural Science Foundation of China [21472190, 21532009, 21672215]
A novel access to 2-substituted benzoimidazoles, through unprecedented denitrogenative imidoyl radical cyclization of 1-azido-2-isocyanoarenes, has been developed. This tandem radical process was initiated by adding a C- or P-centered radical to isocyanide, followed by cycloaddition of the imidoyl radical to the azido group. Then, nitrogen loss and hydrogen abstraction of the resulting aminyl radical from surroundings delivered 2-substituted benzoimidazoles. Carbon radicals generated from another annulation process could also be applied, furnishing various heterocycle linked benzoimidazole derivatives.
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