Synthesis of functionalized CF3-containing heterocycles via [2,3]-sigmatropic rearrangement and sequential catalytic carbocyclization
作者:Daria V. Vorobyeva、Artur K. Mailyan、Alexander S. Peregudov、Natalia M. Karimova、Tamara P. Vasilyeva、Ivan S. Bushmarinov、Christian Bruneau、Pierre H. Dixneuf、Sergey N. Osipov
DOI:10.1016/j.tet.2011.03.031
日期:2011.5
CF3-substituted and nitrogen or sulfur-containing heterocycles has been developed directly from diazocompounds CF3C(N2)Z (Z=CO2Me, P(O)(OEt)2). The method is based on the direct selective synthesis of doubly unsaturated substrates followed by metal-mediated carbocylization. The first step has been performed by Cu(II)-catalyzed [2,3]-sigmatropic rearrangement of propargyl- or/and allyl-containing sulfur
直接从重氮化合物CF 3 C(N 2)Z(Z = CO 2 Me,P(O)(OEt)2)直接开发了一种新的有效接触官能化CF 3取代的含氮或含硫的杂环的方法。该方法基于双不饱和底物的直接选择性合成,然后进行金属介导的碳环化。第一步是通过Cu(II)催化的炔丙基或/和烯丙基的硫和氮的炔丙基的[2,3]σ重排导致氟化烯炔,二烯烃,尤其是烯炔衍生物。第二步涉及通过闭环复分解和Pauson-Khand反应进行碳环化。