57830-00-9Relevant articles and documents
Rhodium-Catalyzed Intermolecular Silylation of Csp?H by Silacyclobutanes
He, Tao,Li, Bin,Liu, Lichuan,Ma, Wenpeng,He, Wei
supporting information, p. 5648 - 5652 (2021/03/08)
The signature reactivity of silacyclobutane (SCB) is their cycloaddition reactions with various π bonds. Recently, the first cases were disclosed where SCBs reacted with both Csp2?H and Csp3?H σ bonds in an intramolecular fashion. Herein, it is reported that SCB is also an efficient reagent for Csp?H bond silylation. Thus, rhodium-catalyzed intermolecular reactions between SCBs and terminal alkynes produced a series of symmetrical and unsymmetrical tetraorganosilicons bearing a Csp?Si functionality. Preliminary studies suggested that the reaction did not involve a cycloaddition pathway, but instead a direct activation of Csp?H bonds.
Rhodium-Catalyzed Reaction of Silacyclobutanes with Unactivated Alkynes to Afford Silacyclohexenes
Chen, Hua,Chen, Yi,Tang, Xiaoxiao,Liu, Shunfa,Wang, Runping,Hu, Tianbao,Gao, Lu,Song, Zhenlei
supporting information, p. 4695 - 4699 (2019/03/07)
A Rh-catalyzed reaction of silacyclobutanes (SCBs) with unactivated alkynes has been developed to form silacyclohexenes with high chemoselectivity. Good enantioselectivity at the stereogenic silicon center was achieved using a chiral phosphoramidite ligand. The resulting silacyclohexenes are useful scaffolds for synthesizing structurally attractive silacyclic compounds.
