Abstract
Manganese(III)-mediated free-radical reaction of allenes with dimethyl malonate or ethyl cyanoacetate in acetic acid produces furan-2-(5H )-one derivatives (but-2-en-4-olides) or dimethyl 2-(2-oxoethylidene)malonates in moderate yields. The possible reaction mechanism is also discussed.
Key words
allene - radical reaction - manganese(III)
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