A Facile Synthesis of Benzofuran Derivatives: A Useful Synthon for Preparation of Trypsin Inhibitor
作者:Kazutaka Tanizawa、Haruo Sekizaki、Kunihiko Itoh、Eiko Toyota
DOI:10.3987/com-02-s27
日期:——
A one-pot synthesis of substituted salicylnitriles
作者:Hany F. Anwar、Trond Vidar Hansen
DOI:10.1016/j.tetlet.2008.05.006
日期:2008.7
Phenols were converted to salicylalclehydes with paraformalclehyde, MgCl(2)-Et(3)N in THF, and subsequent treatment with aqueous ammonia gave the corresponding imines which were oxidized with IBX to the desired salicylnitriles. The sequence of reactions was conveniently carried out as a one-pot procedure under mild conditions. (c) 2008 Elsevier Ltd. All rights reserved.
Palladium-Catalyzed Fluoroalkylative Cyclization of Olefins
A palladium-catalyzed fluoroalkylative cyclization of olefins with readily available Rf–I reagents to afford the corresponding fluoroalkylated 2,3-dihydrobenzofuran and indolin derivatives with moderate to excellent yields is reported. This novel procedure provides an efficient method for the construction of Csp3–CF2 and C–O/N bonds in one step. A wide range of functional groups are tolerated. It is
据报道,钯可以通过容易获得的R f -I试剂催化烯烃的氟代烷基化环化反应,以中等到极好的收率得到相应的氟代烷基化的2,3-二氢苯并呋喃和吲哚衍生物。这一新颖的步骤为一步构建C sp 3 –CF 2和C–O / N键提供了一种有效的方法。可以容忍各种各样的官能团。提出了经由氟代烷基进行的自由基/ SET(单电子转移)途径可以参与催化循环。
Darstellung und antibakterielle Wirkung einiger heterocyclischer Derivate des Hydrochinons. (3. Mitt. über antibakterielle Stoffe)