Naganawa Yuki, Fujita Akira, Sakamoto Kei, Tanaka Shinji, Sato Kazuhiko, Nakajima Yumiko
Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
ACS Omega. 2023 Jan 23;8(6):5672-5682. doi: 10.1021/acsomega.2c07161. eCollection 2023 Feb 14.
Ir-catalyzed hydrosilylation of the alkenyl phosphine borane complex was achieved to give the corresponding products . Because the phosphino group coordinates with metals and is unstable under aerobic conditions, the formation of the corresponding borane adduct was effective not only to promote the target hydrosilylation but also to keep stable under aerobic conditions. The removal of coordinated borane from was readily performed with the treatment by 1,4-diazabicyclo[2.2.2]octane to apply to further transformations. The immobilization and following deprotection of on the surface of mesoporous silica were also examined.
实现了铱催化的烯基膦硼烷配合物的硅氢化反应，得到了相应的产物。由于膦基与金属配位且在有氧条件下不稳定，相应硼烷加合物的形成不仅有效地促进了目标硅氢化反应，而且能在有氧条件下保持稳定。通过用1,4 - 二氮杂双环[2.2.2]辛烷处理，可以很容易地从产物中除去配位硼烷，以便用于进一步的转化反应。还研究了产物在介孔二氧化硅表面的固定化及其后续的脱保护反应。
