Nucleophile-Directed Selective Transformation of<i>cis</i>-1-Tosyl-2-tosyloxymethyl-3-(trifluoromethyl)aziridine into Aziridines, Azetidines, and Benzo-Fused Dithianes, Oxathianes, Dioxanes, and (Thio)morpholines
作者:Sara Kenis、Matthias D'hooghe、Guido Verniest、Maaike Reybroeck、Tuyet Anh Dang Thi、Chinh Pham The、Tham Thi Pham、Karl W. Törnroos、Nguyen Van Tuyen、Norbert De Kimpe
DOI:10.1002/chem.201204485
日期:2013.5.3
cis‐1‐tosyl‐2‐tosyloxymethyl‐3‐(trifluoromethyl)aziridine was developed, starting from 1‐ethoxy‐2,2,2‐trifluoroethanol, involving imination, aziridination, ester reduction, hydrogenation, and N‐,O‐ditosylation steps. Further synthetic elaborations revealed a remarkable difference in the reactivity of cis‐1‐tosyl‐2‐tosyloxymethyl‐3‐(trifluoromethyl)aziridine with respect to aromatic sulfur and oxygen nucleophiles,
从1乙氧基-2,2,2,2-三氟乙醇开始,开发了一个五步合成顺式-1-甲苯基-2-甲苯磺酰氧基甲基3-(三氟甲基)氮丙啶的方法,包括亚胺基化,叠氮化,酯还原,氢化,以及N-,O-二甲苯磺酰化步骤。进一步的合成实验表明,相对于芳香族硫和氧亲核试剂,顺式-1-甲苯基-2-甲苯磺酰氧基甲基-3-(三氟甲基)氮丙啶的反应性有显着差异,因此能够选择性地利用这种通用底物作为官能化氮丙啶,氮杂环丁烷和苯并稠合的二硫杂环丁烷,氧杂蒽环,二恶烷和(硫代)吗啉的合成。