Preparation of 8-Amido-2-dimethylamino-1,2,3,4-tetrahydro-2-dibenzofurans and Several Fluorinated Derivatives via [3,3]-Sigmatropic Rearrangement of <i>O</i>-Aryloximes
作者:Peter R. Guzzo、Ronald N. Buckle、Ming Chou、Sean R. Dinn、Michael E. Flaugh、Anton D. Kiefer,、Kendal T. Ryter、Anthony J. Sampognaro、Steven W. Tregay、Yao-Chang Xu
DOI:10.1021/jo020600b
日期:2003.2.1
in the 6- and 9-positions is described. The tetrahydrodibenzofuran ring systems are prepared by acid-catalyzed [3,3]-sigmatropic rearrangement of O-aryloximes. Regioselective reactions to prepare the requisite O-aryloxime intermediates from commercially available fluorobenzene derivatives are discussed.
制备8-酰胺基-2-氨基-1,2,3,4-四氢-2-二苯并呋喃的方法学,在6、7和9位上带有氟取代基的类似物,以及与氟形成的二氟类似物描述了在6位和9位的位置。四氢二苯并呋喃环系统是通过酸催化O-芳基肟的[3,3]-σ重排而制备的。讨论了由市售氟苯衍生物制备必要的O-芳基肟中间体的区域选择性反应。