503584-77-8Relevant academic research and scientific papers
Formation of a cyclobutylidene ring: Intramolecular [2 + 2] cycloaddition of allyl and vinylidene C=C bonds under mild conditions
Alvarez, Patricia,Lastra, Elena,Gimeno, Jose,Bassetti, Mauro,Falvello, Larry R.
, p. 2386 - 2387 (2003)
Intramolecular [2 + 2] cycloaddition of two C=C bonds in vinylidene complexes [Ru(η5-C9H7){=C=C(R)H}(PPh3){κ1-(P)-PPh2(C3H5)][BF4] affords cyclobutylidene complexes [Ru(η5-C9H7){κ2-(P,C)-(=(CC(R)HCH2CHCH2PPh2)}(PPh3)]-[BF4]. which can be also obtained by reaction of terminal alkynes with [Ru(η5-C9H7)(PPh3){κ3-(P,C,C)-PPh2(C3H5)}][PF6]. The reaction proceeds under mild conditions via vinylidene complexes, and the activation parameters were determined by kinetic studies. Copyright
