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A series of polystyrene-supported molybdenum trihalide complexes bearing pyridine-based PNP-type pincer ligand were synthesized and their catalytic reactivity toward reduction of dinitrogen into am...

Propargylic substitution reactions have offered useful synthetic methods because further transformations based on the alkyne moiety in the propargylic substituted products was readily achieved to construct more complex organic compounds. A large number of works have been devoted to enantioselective propargylic substitution reactions with a variety of nucleophiles. However, successful examples of the use of alcohols as nucleophiles have been quite limited until now. To achieve utilization of aliphatic alcohols, herein we report the use of combined catalysis of a copper-pybox complex and a borinic acid. In this catalytic system, aliphatic alcohols such as benzyl alcohol derivatives were successfully applied to afford the corresponding propargylic etherified products in good yields with high enantioselectivities.

We have found that some vanadium complexes worked as effective catalysts toward reduction of molecular dinitrogen into silylamine under ambient reaction conditions, where up to 24 equiv of N(SiMe3)3 are produced based on the vanadium atom. This is the first successful example of the vanadium-catalyzed transformation of nitrogen gas into ammonia equivalent under mild reaction conditions.

Functionalization of corannulene has been extensively studied, however, radical addition reactions toward corannulene have been unexplored to date. Herein, we report the photochemical addition reac...