PALLADIUM CATALYSED TANDEM CYCLISATION-ANION CAPTURE PROCESSES .3. ORGANOBORON ANION TRANSFER AGENTS

摘要

The cyclisation-anion capture protocol has been applied to a wide range of starter and terminating species to effect regio-and stereo-specific mono-and bis-cyclisation processes in which a variety of organoboronderivatives function as anion transfer reagents. Direct capture (no cyclisation) is rarely a problem and it can usually be suppressed by modification of the reaction conditions. (C) 1997 Elsevier Science Ltd. [References: 28]