作者:Andrei Dragan、D. Heulyn Jones、Alan R. Kennedy、Nicholas C. O. Tomkinson
DOI:10.1021/acs.orglett.6b01203
日期:2016.7.1
The N,O-diacylhydroxylamine derivative 4 has been prepared and its reactivity with nucleophiles investigated. On reaction with lithium enolates of cyclic or acyclic ketones, 4 is converted stereoselectively to the corresponding alkylidene phthalide. The stereochemical outcome of the transformation can be modified by changing the polarity of the reaction medium and the products isomerized under acidic
制备了N,O-二酰基羟胺衍生物4,并研究了其与亲核试剂的反应性。与环状或无环酮的烯醇锂反应时,4立体选择性地转化为相应的亚烷基苯酞。可以通过改变反应介质的极性和在酸性条件下异构化的产物来改变转化的立体化学结果。