The Development of Carbon-Carbon Bond Forming Process Using Aluminum Metal as A Electron Pool

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Aluminum metal is an electron pool (reducing agent) which involves a lot of reactive electrons. We have demonstrated that a diverse transformation of functional groups and carbon-carbon bond forming reactions are selectively achieved by a new electron transfer process using aluminum metal as an electron source. In this project, we have investigated the following fundamental subjects in order to develop practical processes.(a) The electron transfer process from the surface of aluminum metal is highly dependent on the solvent, another redox metal, and additives. We have studied the bimetal redox system to realize the most efficient electron transfer system for the purposes.(b) Some multi metal redox systems consisting of transition metal, reducing metal, and electron pool metal have been found to achieve a variety of organic reactions involving carbon-carbon bond formation. As an example, a facile coupling reaction of alkenyl halides leading to dienes was developed.(c) The redox systems have been applied to the transformation of beta-lactam compounds and new practical synthetic processes of the antibiotics have been developed.