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DOI:
10.1055/sos-SD-046-00090
Gandon, V.; Thorimbert, S.; Malacria, M., Science of Synthesis, (2009) 46, 210.
Acyclic diynes react with metals such as titanium, zirconium, or nickel to give the corresponding bicyclometallacycles, which can be further manipulated to form various 1,2-bis(alkylidene)carbocycles or 1,2-bis(alkylidene)heterocycles.
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