The instant invention is directed to novel silylated agents having the formula
where Ar and Ar' are independently substituted or unsubstituted aromatic rings, R is a branched or unbranched chain of 1 to 6 carbons, R' and R" are independently C1 to C12 alkyl or mixtures of C1 to C12 alkyl, and n is 1, 2 or 3. The novel dibenzoylresorcinol silylated agents are capable of absorbing ultraviolet light.
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。