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ChemInform Abstract: Preference for β-H Elimination in the Termination of the Ni-Promoted Carbonylative Cycloaddition of 2-Haloethylidene-cycloalkanes and Alkynes.

✍ Scribed by F. VILASECA; L. PAGES; J. M. VILLAR; A. LLEBARIA; A. DELGADO; J. M. MORETO


Publisher
John Wiley and Sons
Year
2010
Weight
39 KB
Volume
29
Category
Article
ISSN
0931-7597

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✦ Synopsis


Preference for β-H Elimination in the Termination of the Ni-Promoted Carbonylative Cycloaddition of 2-Haloethylidene-cycloalkanes and Alkynes. -In the Ni(CO) 4 -mediated carbonylative cycloaddition of alkynes and 2-haloethylidenecycloalkanes, the terminating step consists almost exclusively of a β-hydride elimination affording 5-cycloalkylidene-2cyclopentenones or 5-(1-cycloalkenyl)-2-cyclopentenones. -(VILASECA, F.;