Effect of solvent polarity extremes on the coupling of cyclopropylcarbene-chromium complexes and alkynes: Synthesis of β-alkoxycyclopentadienones, 2-cyclopentene-1,3-diones, and cis 4,5-disubstituted cyclopentenones

DOI: 10.1016/S0040-4039(96)02282-4

Source and publish data:

Tetrahedron Letters p. 59 - 62 (1997)

Update date:2022-09-26

Topics:

Authors:

Herndon, James W.

Patel, Paren P.

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Article abstract of DOI:10.1016/S0040-4039(96)02282-4

The reaction between acetylenes and cyclopropylcarbene-chromium complexes in hexane affords exclusively cyclopentadienone derivatives in good yield, which are readily hydrolyzed to cyclopentenediones. The analogous reaction in 50:50 water dioxane affords cis disubstituted cyclopentenones.

Full text of DOI:10.1016/S0040-4039(96)02282-4

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