Cp*CoIII-catalyzed directed C–H trifluoromethylthiolation using N-trifluoromethylthiodibenzenesulfonimide as an electrophilic SCF3 source is described.
Pd<sup>II</sup>
-Catalyzed Purine-Directed Ortho Nitration of 6-Arylpurines by C(sp<sup>2</sup>
)-H Activation: A Practical Approach to Synthesize 6-(2-Nitroaryl)-Purine Derivatives
6‐(2‐Nitroaryl)‐purine can be obtained through PdII‐catalyzed C(sp2)–Hactivation of 6‐arylpurines in the presence of tBuONO/O2. The purine substituent acts as an ortho directing group for the nitration.
在t BuONO / O 2存在下,Pd II催化6-芳基嘌呤的C(sp 2)-H活化可制得6-(2-硝基芳基)-嘌呤。嘌呤取代基充当硝化的邻位导向基团。
Microwave promoted palladium-catalyzed Suzuki–Miyaura cross-coupling reactions of 6-chloropurines with sodium tetraarylborate in water
An efficient method for the synthesis of 6-arylpurines (nucleosides) was developed via Suzuki–Miyaura cross-coupling reactions of 6-chloropurines (nucleosides) and sodium tetraarylborate in neat water (ethanol). The process gave good to high isolated yields within a short reaction time under microwave irradiated conditions.