Vanadium Pyridonate Catalysts: Isolation of Intermediates in the Reductive Coupling of Alcohols | Zendy

Samuel E. Griffin | Zendy; Laurel L. Schafer | Zendy

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Vanadium Pyridonate Catalysts: Isolation of Intermediates in the Reductive Coupling of Alcohols

Author(s) -

Samuel E. Griffin,

Laurel L. Schafer

Publication year - 2020

Publication title -

inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 233

eISSN - 1520-510X

pISSN - 0020-1669

DOI - 10.1021/acs.inorgchem.0c00071

Subject(s) - vanadium , chemistry , bimetallic strip , catalysis , deoxygenation , reductive elimination , coupling reaction , catalytic cycle , metal , combinatorial chemistry , photochemistry , inorganic chemistry , polymer chemistry , organic chemistry

The reductive coupling of alcohols using vanadium pyridonate catalysts is reported. This attractive approach for C(sp 3 )-C(sp 3 ) bond formation uses an oxophilic, earth-abundant metal for a catalytic deoxygenation reaction. Several pyridonate complexes of vanadium were synthesized, giving insight into the coordination chemistry of this understudied class of compounds. Isolated intermediates provide experimental mechanistic evidence that complements reported computational mechanistic proposals for the reductive coupling of alcohols. In contrast to previous mononuclear vanadium(V)/vanadium(III)/vanadium(IV) cycles, this pyridonate catalyst system is proposed to proceed by a vanadium(III)/vanadium(IV) cycle involving bimetallic intermediates.

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