Concurrent tandem catalysis (CTC) is an area of synthetic
chemistry in an early stage of development. As described by
Baker and Bazan,1 CTC is defined as a transformation in which
two or more catalytic cycles operate in a cooperative manner in a
single reactor. An example is shown in Scheme 1 in which
substrate A is transformed by catalyst I into intermediate B,
which then enters a second catalytic cycle operated by catalyst II
to give product P. The advantages of CTC lie in the ability to
avoid losses in time and yield involved with isolating intermediates
in a multistep reaction sequence. However, the challenges in
developing successful CTC cycles include compatibility of
catalysts with solvent, substrates, products, and each other, as
well as reaction sequence selectivity.
Concurrent tandem catalysis (CTC) is an area of synthetic
chemistry in an early stage of development. As described by
Baker and Bazan,1 CTC is defined as a transformation in which
two or more catalytic cycles operate in a cooperative manner in a
single reactor. An example is shown in Scheme 1 in which
substrate A is transformed by catalyst I into intermediate B,
which then enters a second catalytic cycle operated by catalyst II
to give product P. The advantages of CTC lie in the ability to
avoid losses in time and yield involved with isolating intermediates
in a multistep reaction sequence. However, the challenges in
developing successful CTC cycles include compatibility of
catalysts with solvent, substrates, products, and each other, as
well as reaction sequence selectivity.
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