Cleavage of dialkoxyketoxime
    3.
    发明授权
    Cleavage of dialkoxyketoxime 失效
    脱氧脱氧酮肟

    公开(公告)号:US4393215A

    公开(公告)日:1983-07-12

    申请号:US280754

    申请日:1981-07-06

    IPC分类号: C07C259/02 C07D271/08

    CPC分类号: C07C259/02

    摘要: Dialkoxyketoximes such as dimethoxycyclohexanone cleave with halogen and water under basic conditions to yield a series of products having an ester functionality and another functionality which is oximohalide, nitrile oxide or furoxan, depending upon the base strength and/or work-up conditions. Each of those products can be further reacted with sulfur dioxide to produce an adduct, from which an isocyanate is derived. Both the adduct and the isocyanate retain the ester functionality.

    摘要翻译: 二烷氧基环己酮如二甲氧基环己酮在碱性条件下用卤素和水分解,得到一系列具有酯官能团和另一功能性的产物,它们是氧基卤化物,氧化腈或呋喃糖,这取决于碱强度和/或处理条件。 这些产物中的每一种都可以进一步与二氧化硫反应以产生加成物,从中得到异氰酸酯。 加合物和异氰酸酯保留酯官能度。

    Selective monochlorination of ketones and aromatic alcohols
    6.
    发明授权
    Selective monochlorination of ketones and aromatic alcohols 失效
    酮和芳香醇的选择性一氯化

    公开(公告)号:US4310702A

    公开(公告)日:1982-01-12

    申请号:US172798

    申请日:1980-07-28

    摘要: Sulfuryl chloride is reacted in the liquid phase with an organic reactant which is a ketone or aromatic alcohol unsubstituted on both ortho carbons in the presence of a moderator selected from the group consisting of aliphatic alcohols of 1-3 carbons and aliphatic ethers of 2-6 carbons, with sufficient moderator being present to selectively produce a product substantially free of compounds with more than one chlorine atom per carbonyl or aromatic hydroxy. The products, such as monochloroacetone, monochlorocyclohexanone, monochlorophenol and 2,2-bis(3-chloro-4-hydroxyphenyl)propane, are useful as chemical intermediates and as monomers for flame retardant polymers.

    摘要翻译: 在液相中使硫酰氯与有机反应物反应,所述有机反应物是在两种正碳上未取代的酮或芳族醇,在选自1-3个碳原子的脂族醇和2-6个脂肪族醚的脂肪族醚的存在下, 碳,具有足够的缓和剂以选择性地产生基本上不含每个羰基或芳族羟基具有多于一个氯原子的化合物的产物。 产物如单氯丙酮,单氯环己酮,一氯酚和2,2-双(3-氯-4-羟基苯基)丙烷可用作化学中间体和作为阻燃聚合物的单体。

    .alpha.-Nitrosoketal dimers and production of .alpha.-oximinoketals
therefrom
    8.
    发明授权
    .alpha.-Nitrosoketal dimers and production of .alpha.-oximinoketals therefrom 失效
    α-硝基二缩酮二聚体和由其衍生的α-肟基酮

    公开(公告)号:US4206112A

    公开(公告)日:1980-06-03

    申请号:US968935

    申请日:1978-12-13

    CPC分类号: C07J41/0016 C07D317/72

    摘要: This invention describes novel ketals of .alpha.-oximinoketones, methods for the preparation of these compounds and includes novel intermediates formed during the production thereof. The novel class of compounds disclosed herein includes both .alpha.-oximinoketals, as well as the cyclic ketals of .alpha.-oximinoketones. This invention also discloses a novel class of .alpha.-nitrosoketal dimers produced during the synthesis of the corresponding .alpha.-oximinoketals, and it also discloses novel methods in the production thereof.

    摘要翻译: 本发明描述了α-肟基酮的新型缩酮,制备这​​些化合物的方法,包括在其制备过程中形成的新型中间体。 本文公开的新一类化合物包括α-肟基酮,以及α-肟基酮的环缩酮。 本发明还公开了在合成相应的α-肟基时产生的一类新的α-亚硝基二酮二聚体,并且还公开了其生产中的新方法。