Dihydropyridines (DHPs) serve as selective reducing agents,[1] are useful building blocks in organic chemistry,[2] and represent an important class of pharmacologically active compounds.[2d, 3] Transition-metal catalyzed 1, 4-selective hydrosilylations and silaborations of pyridine have recently been reported as two new methods for the synthesis of DHPs.[4] Remarkably, the hydrosilylation was found to be reversible. In general, the ...