S. Guiard et al., Gram scale-up synthesis of all-(Z)-cyclododecatetraene: A comparison between intramolecular Wittig and ring closing metathesis approaches, SYNLETT, (4), 2001, pp. 553-556
A total synthesis of all-(Z)-cyclododeca-1,4,7,10-tetraene was achieved in
28% overall yield using an intramolecular Wittig reaction as key step while
an approach based on ring closing metathesis was found ineffective.