Alkynylsilanes – a missing piece of different silylation agents, can serve as valuable substrates in the O‐silylation through a dealkynative coupling with alcohols or silanols. The described approach displays a whole array of advantages in terms of green chemistry and is a promising alternative to existing methodologies.
Highly Selective Hydroxylation and Alkoxylation of Silanes: One-Pot Silane Oxidation and Reduction of Aldehydes/Ketones
作者:Nianhua Luo、Jianhua Liao、Lu Ouyang、Huiling Wen、Yuhong Zhong、Jitian Liu、Weiping Tang、Renshi Luo
DOI:10.1021/acs.organomet.9b00716
日期:2020.1.13
An efficient chemoselective iridium-catalyzed method for the hydroxylation and alkoxylation of organosilanes to generate hydrogen gas and silanols or silyl ethers was developed. A variety of sterically hindered silanes with alkyl, aryl, and ether groups were tolerated. Furthermore, this atom-economical catalytic protocol can be used for the synthesis of silanediols and silanetriols. A one-pot silane
Highly Selective Oxidation of Organosilanes to Silanols with Hydrogen Peroxide Catalyzed by a Lacunary Polyoxotungstate
作者:Ryo Ishimoto、Keigo Kamata、Noritaka Mizuno
DOI:10.1002/anie.200904694
日期:2009.11.9
Silanol synthesis: Divacant lacunary polyoxotungstate (nBu4N+)4[γ‐SiW10O34(H2O)2] (I) is an efficient homogeneous catalyst for highlyselectiveoxidation of organosilanes to silanols with 30–60 % aqueous H2O2. Various kinds of silanes 1 containing aryl, alkyl, alkenyl, alkynyl, and alkoxy groups are chemoselectively converted into the corresponding silanols 2 in high yields with only one equivalent
硅烷醇合成:Divacant缺位polyoxotungstate(Ñ卜4 Ñ +)4 [γ-硅钨酸10 ø 34(H 2 O)2 ](我)是一种有效的均相催化剂用于向硅烷醇的有机硅烷的高度选择性氧化用30-60%含水H 2 O 2。含有芳基,烷基,烯基,炔基和烷氧基的各种硅烷1仅以一当量的H 2 O 2水溶液就可以高选择性地化学选择性转化为相应的硅烷醇2。 相对于基板。
Wettability-Driven Palladium Catalysis for Enhanced Dehydrogenative Coupling of Organosilanes
作者:Jian-Dong Lin、Qing-Yuan Bi、Lei Tao、Tao Jiang、Yong-Mei Liu、He-Yong He、Yong Cao、Yang-Dong Wang
DOI:10.1021/acscatal.6b03233
日期:2017.3.3
for designing chemically and biologically useful organosilicon compounds. Heterogeneous catalytic systems sufficiently active, selective, and durable for dehydrosilylation reactions under mild conditions have been lacking to date. Herein, we report that the hydrophobic characteristics of the underlying supports can be advantageously utilized to enhance the efficiency of palladium nanoparticles (Pd NPs)
Pores to the fore: Nanoporous gold shows a remarkable catalytic activity for the oxidation of organosilane compounds with water. The catalyst is easily recoverable and can be reused several times without leaching and loss of activity.