期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 75, 期 3, 页码 945-947出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo902159z
关键词
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2,2,2-Ti-ifluoro- and trichloroethyl imidates, which are easily prepared by reaction of a nitrile and a trihaloethanol in the presence of HCl, have proven to be excellent reagents for the preparation of amidines under mild reaction conditions. Depending on the nature of the ne nucleophile, the imidates call react either as the free-base or the hydrochloride salt in a telescoped process. In several cases, the p-bromobenzoate salt of the desired product was directly isolated from the reaction mixture.
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