Lewis Acid-Catalyzed Addition of Benzophenone Imine to Epoxides Enables the Selective Synthesis and Derivatization of Primary 1,2-Amino Alcohols
作者:John Jin Lim、David C. Leitch
DOI:10.1021/acs.oprd.8b00133
日期:2018.5.18
Benzophenone imine was found to be an effective ammonia surrogate for the selective preparation of primary 1,2-amino alcohols fromepoxides, including enantiopure epichlorohydrin, in the presence of catalytic Y(OTf)3. High-throughput screening of 48 Lewis acids quickly identified Y(OTf)3 as an effective mediator of the addition reaction under mild conditions. Following acidic hydrolysis, the primary
Remote C(sp<sup>3</sup>)–H Oxygenation of Protonated Aliphatic Amines with Potassium Persulfate
作者:Melissa Lee、Melanie S. Sanford
DOI:10.1021/acs.orglett.6b03731
日期:2017.2.3
the development of a method for selective remoteC(sp3)–H oxygenation of protonated aliphatic amines using aqueous potassium persulfate. Protonation serves to deactivate the proximal C(sp3)–H bonds of the amine substrates and also renders the amines soluble in the aqueous medium. These reactions proceed under relatively mild conditions (within 2 h at 80 °C with amine as limiting reagent) and do not