申请人:Sumitomo Chemical Company, Limited
公开号:US04780556A1
公开(公告)日:1988-10-25
A method for producing chlorosilanes, which are useful in a wide range of industrial field as an intermediate for organosilicon products such as silicone rubbers, silicone oils, silicone resins, etc. as well as a raw material for the production of organic chemicals such as medicines, agricultural chemicals, dyestuffs, etc., represented by the general formula, ##STR1## wherein R.sub.1 and R.sub.4, which may be the same or different, represent an alkyl group having from 1 to 5 carbon atoms, a chloromethyl group, an ethynyl group or a halogen atom; R.sub.2 and R.sub.3, which may be the same or different, represent an alkyl group having from 1 to 3 carbon atoms; R.sub.5 and R.sub.6, which may be the same or different, represent an alkyl group having from 1 to 2 carbon atoms; and R.sub.7 represents an alkyl group having from 1 to 18 carbon atoms, which comprises reacting a disiloxane represented by the general formula, ##STR2## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are as defined above, or a silanol represented by the general formula, ##STR3## wherein R.sub.2, R.sub.3 and R.sub.7 are as defined above, with phosgene in the presence or absence of a tertiary amide.
一种生产氯硅烷的方法,该氯硅烷可用于广泛的工业领域,作为有机硅产品(如硅橡胶、硅油、硅树脂等)的中间体,以及用于生产药品、农药、染料等有机化学品的原材料。所述氯硅烷的一般式为##STR1## 其中,R.sub.1和R.sub.4(可以相同也可以不同)表示具有1至5个碳原子的烷基、氯甲基、乙炔基或卤素原子;R.sub.2和R.sub.3(可以相同也可以不同)表示具有1至3个碳原子的烷基;R.sub.5和R.sub.6(可以相同也可以不同)表示具有1至2个碳原子的烷基;R.sub.7表示具有1至18个碳原子的烷基。该方法包括在三级酰胺存在或不存在的情况下,将由下式表示的二硅氧烷或下式表示的硅醇与光气反应:##STR2## 其中,R.sub.1、R.sub.2、R.sub.3、R.sub.4、R.sub.5和R.sub.6如上所定义,R.sub.7如上所述。