Reactivity of 1.1.1-Propellane with (silox)<sub>3</sub>M (M = Ti, V, Cr): Structures of (silox)<sub>3</sub>V═(<sup>c</sup>C<sub>4</sub>H<sub>4</sub>)═CH<sub>2</sub> and [(silox)<sub>3</sub>Cr–(1.1.1-C<sub>5</sub>H<sub>6</sub>)−]<sub>2</sub>
作者:Gregory M. George、Peter T. Wolczanski、Thomas R. Cundari、Samantha N. MacMillan
DOI:10.1021/acs.organomet.2c00313
日期:2022.11.28
electrophilic metal center can activate it toward ring opening. Low-valent, early-metal complexes ((silox)3M (M = Ti (1), V (2) (or M = V(THF) (2-THF), Cr (3))) were employed to test this assessment with mixed results. Facile ring opening of 111P occurs for 1, producing known degradation products, and 2, which generates the alkylidene (silox)V═(cC4H4)═CH2 (2═C5H6), a species capable of catalyzing the ROMP