93714-50-2Relevant academic research and scientific papers
Synthesis and transformations of metallacycles 37. Cp2ZrCl 2-Catalyzed cycloalumination of substituted methylidenecyclopropane with Et3Al
D'Yakonov,Trapeznikova,Dzhemilev
experimental part, p. 107 - 111 (2011/08/07)
Cycloalumination of substituted methylidenecyclopropanes with Et 3Al catalyzed by Cp2ZrCl2 affords alumaspiro[2.4]heptanes in 64-92% yields.
One-pot synthesis of small spirocarbocycles through the catalytic cyclometalation reactions of unsaturated compounds
D'yakonov, Vladimir A.,Tuktarova, Regina A.,Trapeznikova, Olga A.,Khalilov, Leonard M.,Popod'ko, Natal'ya R.
experimental part, p. 20 - 33 (2011/06/21)
The mild and efficient one-pot methods to synthesize substituted spirocyclopropanes and spirocyclobutanes are reported. The elaborated procedures based on consecutive cycloalumination of methylenecyclopropanes, methylenecyclobutanes or cycloalkynes assist
Synthesis, Structure, and Reactions of Stable Titanacyclopentanes
Mashima, Kazushi,Sakai, Nozomu,Takaya, Hidemasa
, p. 2475 - 2483 (2007/10/02)
Titanacyclic compounds of the formula Cp*2Ti(CH2CH2C(CH2CHR)CH2) (5a; R=H and 5b; R=C6H5, Cp*=pentamethylcyclopentadienyl), the first stable titanacyclopentanes, have been prepared by the reaction of bis(pentamethylcyclopentadienyl)titanium-ethylene complex (3) with methylenecyclopropanes (4), and their structures were determined based on both spectroscopic data and X-ray crystallography.Complex 5b crystallized in space group P21/a (Z=4) with cell constants, a=21.832(3), b=8.580(1), c=14.759(2) Angstroem, β=96.81(1) deg, U=2744.9(6) Angstroem3 (4261 reflections, R=0.053).The reaction of 5 with carbon monoxide afforded spiroheptan-5-ones in 98percent yield.The thermal decomposition of 5 has been investigated, and possible mechanisms of the reactions have been proposed based on deuterium-labeled experiments.A novel formal reductive elimination of organic ligands giving 1-phenylspirohexane has been observed in the thermolysis of 5b.A structure-reactivity relationship has been discussed.
