How bulky ligands control the chemoselectivity of Pd-catalyzed N-arylation of ammonia

Steric bulk has been recognized as a central design principle for ligands in the widely utilized Buchwald–Hartwig amination. This mechanistic study reveals how this steric effect manipulates the reaction pathway and determines the chemoselectivity.

Bulky ligands shape the separation between the large spin carriers to condition field-induced slow magnetic relaxation

Magnetic relaxations in isotropic high spin S = 39/2 cyanido-bridged {Mn9[W(CN)8]6L8(solv)8} clusters tuned by crystal engineering.

One-step and selective approach to silicon-containing exo-norbornenes

One-step and selective approach to the synthesis of Si-containing exo-norbornenes has been developed based on hydrosilylation reaction of norbornadiene-2,5 with unactivated silanes using Pd-complexes in the presence of bulky ligands. This approach leads to only exo-isomers of norbornene derivatives. The absence of alkylation step by organometallic compounds or photochemical isomerization makes the suggested approach promising for the synthesis of new polymeric materials with desired properties.