STABLE ALKENYL OR ALKYNYL-CONTAINING ORGANOSILICON PRECURSOR COMPOSITIONS

    公开(公告)号:US20230339986A1

    公开(公告)日:2023-10-26

    申请号:US18333759

    申请日:2023-06-13

    IPC分类号: C07F7/08 B01D3/00

    CPC分类号: C07F7/0803 B01D3/009

    摘要: A method for producing an alkenyl or alkynyl-containing organosilicon precursor composition, the method comprising the steps of distilling at least once a composition comprising an alkenyl or alkynyl-containing organosilicon compound having the formula RnSiR14-n wherein R is selected a linear or branched C2 to C6 alkenyl group, a linear or branched C2 to C6 alkynyl group; R1 is selected from hydrogen, a linear or branched C1 to C10 alkyl group, and a C3 to C10 cyclic alkyl group; and n is a number selected from 1 to 4, wherein a distilled alkenyl or alkynyl-containing organosilicon precursor composition is produced after distilling; and packaging the distilled alkenyl or alkynyl-containing organosilicon precursor composition in a container, wherein the container permits transmission into the container of no more than 10% of ultraviolet and visible light having a wavelength of between 290 nm to 450 nm.

    FUNCTIONALIZED CYANOSILANE AND SYNTHESIS METHOD AND USE THEREOF

    公开(公告)号:US20180141964A1

    公开(公告)日:2018-05-24

    申请号:US15876464

    申请日:2018-01-22

    IPC分类号: C07F7/08

    摘要: The present teachings relate to a functionalized silyl cyanide and synthetic methods thereof. As an example, the method may include adding a raw material silane and a cyanide source MCN in an organic solvent to produce the functionalized silyl cyanide in the absence of catalyst or in the presence of a metal salt catalyst. The functionalized silyl cyanide may be used in the reactions that classic TMSCN participates in, to synthesize important intermediates (e.g., cyanohydrin, amino alcohols and α-amino nitrile compounds), with improved reactivity and selectivity. The cyanosilyl ether resulted from the nucleophilic addition of functionalized silyl cyanide to aldehyde or ketone may undergo intramolecular reaction under appropriate conditions to transfer the functional groups on silicon onto the other parts of the product linked to silicon. Such a functional group transfer process may increase the synthesis efficiency and atom economy, as well as afford products unobtainable using traditional TMSCN.