A novel synthesis of α-fluoroacetonitriles. Application to a convenient preparation of 2-fluoro-2-phenethylamines
作者:Michael E. LeTourneau、James R. McCarthy
DOI:10.1016/s0040-4039(01)81570-7
日期:——
α-Fluorophenylacetonitriles (3) are readily prepared by the treatment of the corresponding benzaldehyde cyanohydrin trimethylsilylethers (2) with diethylaminosulfur trifluoride (DAST). This method for the introduction of fluorine alpha to a cyano group is also applicable to the cyanohydrin trimethylsilylethers of aromatic ketones. Diborane reduction of the α-fluorophenylacetonitriles (3) yields 2-
α-氟苯基乙腈(3)可以通过用三氟二乙基氨基硫磺(DAST)处理相应的苯甲醛氰醇三甲基甲硅烷基醚(2)来轻松制备。用于将氟α引入氰基的这种方法也适用于芳族酮的氰醇三甲基甲硅烷基醚。乙硼烷还原α-氟代苯基乙腈(3)得到2-氟-2-苯乙胺(4)。