Metallopinacolate Intermediates in the Reductive Coupling of Acetone Promoted by Uranium Reagents | Zendy

Maury Olivier | Zendy; Villiers Claude | Zendy; Ephritikhine Michel | Zendy

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Metallopinacolate Intermediates in the Reductive Coupling of Acetone Promoted by Uranium Reagents

Author(s) -

Maury Olivier,

Villiers Claude,

Ephritikhine Michel

Publication year - 1996

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.199611291

Subject(s) - acetone , uranium , reagent , chemistry , counterion , lithium (medication) , amalgam (chemistry) , coupling reaction , inorganic chemistry , organic chemistry , catalysis , ion , materials science , medicine , electrode , metallurgy , endocrinology

New aspects of the mechanism of the McMurry reaction were revealed by studying the coupling of acetone with uranium tetrachloride and lithium or sodium amalgam. The two metallopinacolate intermediates 1 and 2 were isolated. Only the cyclic complex 2 , formed by reaction of 1 with the reducing agent, was transformed, under more forcing conditions, into tetramethylethylene. Counterion: Li + .

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