Palladium-Catalyzed Synthesis of Benzosilolo[2,3-b]indoles via Cleavage of a C(sp3)–Si Bond and Consequent Intramolecular C(sp2)–Si Coupling
摘要:
An efficient process involving Pd-catalyzed selective cleavage of a C(sp(3))-Si bond and consequent intramolecular C(sp(2))-Si coupling has been developed, affording benzosilolo[2,3-b]indoles as a new type of silicon-bridged polyheteroarene in excellent yields. Aldehyde was found for the first time to be able to promote the efficiency of the catalytic process remarkably.
Palladium-catalyzed silyl C(sp3)–H bond activation
作者:Yun Liang、Weizhi Geng、Junnian Wei、Kunbing Ouyang、Zhenfeng Xi
DOI:10.1039/c2ob06941e
日期:——
lyzed activation of silyl C(sp3)–H bond was realized and synthetically applied. A variety of organic skeletons substituted with SiMe3 groups could undergo the Pd-catalyzed intramolecular coupling reaction, resulting in an unprecedented synthetic method for yielding six-membered silacycles. It was found that the adjacent Si atom played an essential role for the activation of the C(sp3)–H bond of the
Palladium-Catalyzed Synthesis of Benzosilolo[2,3-<i>b</i>]indoles via Cleavage of a C(sp<sup>3</sup>)–Si Bond and Consequent Intramolecular C(sp<sup>2</sup>)–Si Coupling
作者:Yun Liang、Shaoguang Zhang、Zhenfeng Xi
DOI:10.1021/ja2024959
日期:2011.6.22
An efficient process involving Pd-catalyzed selective cleavage of a C(sp(3))-Si bond and consequent intramolecular C(sp(2))-Si coupling has been developed, affording benzosilolo[2,3-b]indoles as a new type of silicon-bridged polyheteroarene in excellent yields. Aldehyde was found for the first time to be able to promote the efficiency of the catalytic process remarkably.