Selective Phosphoramidation and Phosphonation of Benzoxazoles via Sequence Control.
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DOI: 10.1021/acs.orglett.7b00726
Abstract: A selective phosphoramidation and phosphonation of benzoxazole was developed with trialkyl phosphites in the presence of iodine under mild conditions. In the reaction, the transformation completes in 10 min at room temperature and the substrates… read more here.
Keywords: phosphonation benzoxazoles; phosphoramidation phosphonation; sequence; selective phosphoramidation ... See more keywords
Metal-free phosphonation of benzoxazoles and benzothiazoles under oxidative conditions
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DOI: 10.1039/c7qo00318h
Abstract: An iodine promoted phosphonation of benzoxazoles and benzothiazoles with trialkyl phosphites was described. This reaction undergoes three steps: an addition procedure, followed by a radical oxidation, and an elimination reaction, provides an efficient method to… read more here.
Keywords: metal free; benzothiazoles oxidative; benzoxazoles benzothiazoles; free phosphonation ... See more keywords