Answers are grounded in this paper and cite their sources.
[structure in text] Addition of "zirconocene" to 1-alkynylphosphonates gives three-membered zirconacylces that can be hydrolyzed to cis-vinylphosphonates or further reacted with alkynes/hydrolysis to give substituted (Z,E)- and (E,E)-1,3-butadienylphosphonates.
No takes yet. Share an insight, caveat, or question.
Quntar et al. (2001) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: