Influence of magnesium bromide on the regioselectivity of the cycloaddition of ynamines with cyclenones: difference in reactivity between cyclohexenones and cyclopentenones.

J. Ficini; A. Krief; A. Guingant; D. Desmaele

Influence of magnesium bromide on the regioselectivity of the cycloaddition of ynamines with cyclenones: difference in reactivity between cyclohexenones and cyclopentenones.

J. Ficini, A. Krief, A. Guingant, D. Desmaele

Research output: Contribution to journal › Article › peer-review

Abstract

The cycloaddition of ynamines uith cyclohexenones occurs in the presence of magnesium bromide at the carbonyl but proceeds by attack on the carbon-carbon double bond without catalyst whereas, in contrast, with cyclopentenones, the reaction takes place at the carbon-carbon double bond with or without magnesium bromide.

Original language	English
Pages (from-to)	725-728
Number of pages	4
Journal	Tetrahedron Letters
Volume	22
Issue number	8
Publication status	Published - 1 Jan 1981

Cite this

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title = "Influence of magnesium bromide on the regioselectivity of the cycloaddition of ynamines with cyclenones: difference in reactivity between cyclohexenones and cyclopentenones.",

abstract = "The cycloaddition of ynamines uith cyclohexenones occurs in the presence of magnesium bromide at the carbonyl but proceeds by attack on the carbon-carbon double bond without catalyst whereas, in contrast, with cyclopentenones, the reaction takes place at the carbon-carbon double bond with or without magnesium bromide.",

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AU - Guingant, A.

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AB - The cycloaddition of ynamines uith cyclohexenones occurs in the presence of magnesium bromide at the carbonyl but proceeds by attack on the carbon-carbon double bond without catalyst whereas, in contrast, with cyclopentenones, the reaction takes place at the carbon-carbon double bond with or without magnesium bromide.

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Influence of magnesium bromide on the regioselectivity of the cycloaddition of ynamines with cyclenones: difference in reactivity between cyclohexenones and cyclopentenones.

Abstract

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