817640-85-0Relevant academic research and scientific papers
Formal [3 + 2] and [3 + 3] additions of acceptor-substituted cyclopropylmethylsilanes to allenylsilanes
Yadav, Veejendra K.,Sriramurthy, Vardhineedi
, p. 4495 - 4498 (2004)
(Chemical equation presented) 1,3-Dipolar synthons formed from vicinal TBDPS-substituted cyclopropyl alkyl/phenyl ketones on treatment with Lewis acids such as TiCl4 and Et2AlCl reacted with allenylsilanes to furnish [3 + 2] and [3 +
Copper(I)-catalyzed regio- and chemoselective single and double addition of nucleophilic silicon to propargylic chlorides and phosphates
Hazra, Chinmoy K.,Oestreich, Martin
supporting information; experimental part, p. 4010 - 4013 (2012/10/08)
Copper(I)-catalyzed propargylic substitution of linear precursors with (Me2PhSi)2Zn predominantly yields the γ isomer independent of the propargylic leaving group. The thus formed allenylic silane reacts regioselectively with another equivalent of (Me2PhSi) 2Zn, yielding a bifunctional building block with allylic and vinylic silicon groups. The reaction rates of both steps are well-balanced for chloride (γ:α ≥ 99:1) where the propargylic displacement occurs quantitatively prior to the addition step. Substitutions of α-branched propargylic phosphates are also reported.
