One‐Pot Sequence‐Controlled Synthesis of Oligosiloxanes,Angewandte Chemie International Edition

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One‐Pot Sequence‐Controlled Synthesis of Oligosiloxanes
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-03-15 , DOI: 10.1002/anie.201801031
Kazuhiro Matsumoto ₁ , Yuki Oba ₁ , Yumiko Nakajima ₁ , Shigeru Shimada ₁ , Kazuhiko Sato ₁

Affiliation

Silicones (organopolysiloxanes) have found applications in a wide range of research areas, and their unique and valuable properties have rendered these materials virtually irreplaceable. Despite the fact that silicones have been employed industrially for more than 70 years, synthetic routes to generate silicones remain limited, and the sequence‐controlled synthesis of oligo‐ and polysiloxanes still represents a major challenge in silicone chemistry. Described here is a highly selective sequence‐controlled synthesis of linear, branched, and cyclic oligosiloxanes by simple iteration of two reactions, specifically, a B(C₆F₅)₃‐catalyzed dehydrocarbonative cross‐coupling of alkoxysilanes with hydrosilanes and a B(C₆F₅)₃‐catalyzed hydrosilylation of carbonyl compounds, in a single flask. The sequence of the resulting oligosiloxanes can be controlled precisely by the order of addition of the hydrosilane monomers.

中文翻译：

一锅顺序控制的低聚硅氧烷合成

有机硅（有机聚硅氧烷）已在广泛的研究领域中得到应用，其独特而宝贵的性能使得这些材料几乎不可替代。尽管有机硅已在工业上使用了70多年，但合成有机硅的途径仍然受到限制，低聚硅氧烷和聚硅氧烷的顺序控制合成仍然代表着有机硅化学的主要挑战。这里描述的是通过两个反应的简单迭代进行高度选择性的序列控制的线性，支化和环状低聚硅氧烷的合成，特别是烷氧基硅烷与氢硅烷的B（C ₆ F ₅）₃催化脱烃交叉偶联和B（ C ₆ F ₅）在单个烧瓶中₃催化的羰基化合物的氢化硅烷化。可以通过加氢硅烷单体的加入顺序来精确控制所得低聚硅氧烷的顺序。

更新日期：2018-03-15

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