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Direct evidence for equilibration in a reformatsky reaction and for dependence of its stereoselectivity on electronic substituent effect

✍ Scribed by A. Balsamo; P.L. Barili; P. Crotti; M. Ferretti; B. Macchia; F. Macchia

Publisher: Elsevier Science
Year: 1974
Tongue: French
Weight: 194 KB
Volume: 15
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)82391-1

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✦ Synopsis

Although the Reformatsky reaction' has been extensively investigated, there are still many unoertain points about its mechanism,2 and particularly on whether the formation of diastereoisomeric hydroxyesters is under kinetic or thermodynamic control, *1~2a~b~3 indirect evidence in favor or against equilibration of these products has been reported.3 We have now obtained direct evidence for an initial kinetic control and for a slower equilibration of the diastereoisomers in the reaction medium.

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